fdo#81356: convert Fraction to boost::rational<long> - wip

* Added rational util functions used by Fraction class not
  available in the boost::rational class.
* Replaced usage of Fraction by boost::rational<long>
* Removed code that relies on:
  1. fraction.IsValid() -- rational only allow valid values, ie
     denominator() != 0
  2. rational.denominator() == 0 -- always false
  3. rational.denominator() < 0 -- always false but implementation
     detail: http://www.boost.org/doc/libs/release/libs/rational/rational.html#Internal%20representation
* Simplified code that relies on:
  1. rational.denominator() != 0 -- always true
* BUGS EXIST because Fraction allows the creation of invalid values but
  boost::rational throws the exception boost::bad_rational

Change-Id: I84970a4956afb3f91ac0c8f726547466319420f9
Reviewed-on: https://gerrit.libreoffice.org/11551
Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>

61 files changed, 352 insertions, 403 deletions

diff --git a/svx/inc/pch/precompiled_svxcore.hxx b/svx/inc/pch/precompiled_svxcore.hxx
index 9bb07229cfbd..7b90cbe617ec 100644
--- a/svx/inc/pch/precompiled_svxcore.hxx
+++ b/svx/inc/pch/precompiled_svxcore.hxx
@@ -737,7 +737,7 @@
 #include <tools/debug.hxx>
 #include <tools/diagnose_ex.h>
 #include <tools/fldunit.hxx>
-#include <tools/fract.hxx>
+#include <tools/rational.hxx>
 #include <tools/gen.hxx>
 #include <tools/globname.hxx>
 #include <tools/helpers.hxx>
diff --git a/svx/inc/sdr/properties/itemsettools.hxx b/svx/inc/sdr/properties/itemsettools.hxx
index d930e176b24b..ef365727b087 100644
--- a/svx/inc/sdr/properties/itemsettools.hxx
+++ b/svx/inc/sdr/properties/itemsettools.hxx
@@ -28,7 +28,7 @@
 class SdrObject;
 class SfxItemSet;
 class Rectangle;
-class Fraction;
+namespace boost { template<class T> class rational; }
 
 
 // class to remember broadcast start positions
@@ -57,7 +57,7 @@ namespace sdr
 {
     namespace properties
     {
-        void ScaleItemSet(SfxItemSet& rSet, const Fraction& rScale);
+        void ScaleItemSet(SfxItemSet& rSet, const boost::rational<long>& rScale);
     } // end of namespace properties
 } // end of namespace sdr
 
diff --git a/svx/inc/svdoopengl.hxx b/svx/inc/svdoopengl.hxx
index e30baeacfd0a..30fd2c86abb5 100644
--- a/svx/inc/svdoopengl.hxx
+++ b/svx/inc/svdoopengl.hxx
@@ -32,7 +32,7 @@ public:
 
     OpenGLContext* getOpenGLContext() { return mpContext;}
 
-    virtual void NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact) SAL_OVERRIDE;
+    virtual void NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact) SAL_OVERRIDE;
 
     void setRenderer(IOpenGLRenderer* pRenderer);
     IOpenGLRenderer* getRenderer();
diff --git a/svx/inc/sxmsitm.hxx b/svx/inc/sxmsitm.hxx
index 8843e4b37c40..b262b02362bd 100644
--- a/svx/inc/sxmsitm.hxx
+++ b/svx/inc/sxmsitm.hxx
@@ -27,8 +27,8 @@
 // Instead, we multiply them with each other.
 class SdrMeasureScaleItem: public SdrScaleItem {
 public:
-    SdrMeasureScaleItem()                   : SdrScaleItem(SDRATTR_MEASURESCALE,Fraction(1,1)) {}
-    SdrMeasureScaleItem(const Fraction& rFr): SdrScaleItem(SDRATTR_MEASURESCALE,rFr) {}
+    SdrMeasureScaleItem()                   : SdrScaleItem(SDRATTR_MEASURESCALE,boost::rational<long>(1,1)) {}
+    SdrMeasureScaleItem(const boost::rational<long>& rFr): SdrScaleItem(SDRATTR_MEASURESCALE,rFr) {}
     SdrMeasureScaleItem(SvStream& rIn)      : SdrScaleItem(SDRATTR_MEASURESCALE,rIn) {}
 };
 
diff --git a/svx/inc/sxreaitm.hxx b/svx/inc/sxreaitm.hxx
index 46a063ef739a..0f9a216fc359 100644
--- a/svx/inc/sxreaitm.hxx
+++ b/svx/inc/sxreaitm.hxx
@@ -25,15 +25,15 @@
 
 class SdrResizeXAllItem: public SdrFractionItem {
 public:
-    SdrResizeXAllItem(): SdrFractionItem(SDRATTR_RESIZEXALL,Fraction(1,1)) {}
-    SdrResizeXAllItem(const Fraction& rFact): SdrFractionItem(SDRATTR_RESIZEXALL,rFact) {}
+    SdrResizeXAllItem(): SdrFractionItem(SDRATTR_RESIZEXALL,boost::rational<long>(1,1)) {}
+    SdrResizeXAllItem(const boost::rational<long>& rFact): SdrFractionItem(SDRATTR_RESIZEXALL,rFact) {}
     SdrResizeXAllItem(SvStream& rIn): SdrFractionItem(SDRATTR_RESIZEXALL,rIn)    {}
 };
 
 class SdrResizeYAllItem: public SdrFractionItem {
 public:
-    SdrResizeYAllItem(): SdrFractionItem(SDRATTR_RESIZEYALL,Fraction(1,1)) {}
-    SdrResizeYAllItem(const Fraction& rFact): SdrFractionItem(SDRATTR_RESIZEYALL,rFact) {}
+    SdrResizeYAllItem(): SdrFractionItem(SDRATTR_RESIZEYALL,boost::rational<long>(1,1)) {}
+    SdrResizeYAllItem(const boost::rational<long>& rFact): SdrFractionItem(SDRATTR_RESIZEYALL,rFact) {}
     SdrResizeYAllItem(SvStream& rIn): SdrFractionItem(SDRATTR_RESIZEYALL,rIn)    {}
 };
 
diff --git a/svx/inc/sxreoitm.hxx b/svx/inc/sxreoitm.hxx
index 4bb14b982325..fe935cf3b5c2 100644
--- a/svx/inc/sxreoitm.hxx
+++ b/svx/inc/sxreoitm.hxx
@@ -25,15 +25,15 @@
 
 class SdrResizeXOneItem: public SdrFractionItem {
 public:
-    SdrResizeXOneItem(): SdrFractionItem(SDRATTR_RESIZEXONE,Fraction(1,1)) {}
-    SdrResizeXOneItem(const Fraction& rFact): SdrFractionItem(SDRATTR_RESIZEXONE,rFact) {}
+    SdrResizeXOneItem(): SdrFractionItem(SDRATTR_RESIZEXONE,boost::rational<long>(1,1)) {}
+    SdrResizeXOneItem(const boost::rational<long>& rFact): SdrFractionItem(SDRATTR_RESIZEXONE,rFact) {}
     SdrResizeXOneItem(SvStream& rIn): SdrFractionItem(SDRATTR_RESIZEXONE,rIn)    {}
 };
 
 class SdrResizeYOneItem: public SdrFractionItem {
 public:
-    SdrResizeYOneItem(): SdrFractionItem(SDRATTR_RESIZEYONE,Fraction(1,1)) {}
-    SdrResizeYOneItem(const Fraction& rFact): SdrFractionItem(SDRATTR_RESIZEYONE,rFact) {}
+    SdrResizeYOneItem(): SdrFractionItem(SDRATTR_RESIZEYONE,boost::rational<long>(1,1)) {}
+    SdrResizeYOneItem(const boost::rational<long>& rFact): SdrFractionItem(SDRATTR_RESIZEYONE,rFact) {}
     SdrResizeYOneItem(SvStream& rIn): SdrFractionItem(SDRATTR_RESIZEYONE,rIn)    {}
 };
 
diff --git a/svx/source/customshapes/EnhancedCustomShape3d.cxx b/svx/source/customshapes/EnhancedCustomShape3d.cxx
index 92967399c1da..0a810de128d1 100644
--- a/svx/source/customshapes/EnhancedCustomShape3d.cxx
+++ b/svx/source/customshapes/EnhancedCustomShape3d.cxx
@@ -262,11 +262,11 @@ SdrObject* EnhancedCustomShape3d::Create3DObject( const SdrObject* pShape2d, con
     if ( pModel )
     {
         fMap = 1.0;
-        Fraction aFraction( pModel->GetScaleFraction() );
-        if ( ( aFraction.GetNumerator() ) != 1 || ( aFraction.GetDenominator() != 1 ) )
+        boost::rational<long> aFraction( pModel->GetScaleFraction() );
+        if ( ( aFraction.numerator() ) != 1 || ( aFraction.denominator() != 1 ) )
         {
-            fMap *= aFraction.GetNumerator();
-            fMap /= aFraction.GetDenominator();
+            fMap *= aFraction.numerator();
+            fMap /= aFraction.denominator();
             pMap = &fMap;
         }
         if ( pModel->GetScaleUnit() != MAP_100TH_MM )
diff --git a/svx/source/customshapes/EnhancedCustomShapeFunctionParser.cxx b/svx/source/customshapes/EnhancedCustomShapeFunctionParser.cxx
index 4f546e1b1c0c..661af54f66e8 100644
--- a/svx/source/customshapes/EnhancedCustomShapeFunctionParser.cxx
+++ b/svx/source/customshapes/EnhancedCustomShapeFunctionParser.cxx
@@ -19,7 +19,7 @@
 
 #include "svx/EnhancedCustomShape2d.hxx"
 #include <rtl/ustring.hxx>
-#include <tools/fract.hxx>
+#include <tools/rational.hxx>
 
 // Makes parser a static resource,
 // we're synchronized externally.
@@ -116,19 +116,19 @@ public:
     virtual EnhancedCustomShapeParameter fillNode( std::vector< EnhancedCustomShapeEquation >& rEquations, ExpressionNode* /* pOptionalArg */, sal_uInt32 /* nFlags */ ) SAL_OVERRIDE
     {
         EnhancedCustomShapeParameter aRet;
-        Fraction aFract( maValue );
-        if ( aFract.GetDenominator() == 1 )
+        boost::rational<long> aFract( maValue );
+        if ( aFract.denominator() == 1 )
         {
             aRet.Type = EnhancedCustomShapeParameterType::NORMAL;
-            aRet.Value <<= (sal_Int32)aFract.GetNumerator();
+            aRet.Value <<= (sal_Int32)aFract.numerator();
         }
         else
         {
             EnhancedCustomShapeEquation aEquation;
             aEquation.nOperation = 1;
             aEquation.nPara[ 0 ] = 1;
-            aEquation.nPara[ 1 ] = (sal_Int16)aFract.GetNumerator();
-            aEquation.nPara[ 2 ] = (sal_Int16)aFract.GetDenominator();
+            aEquation.nPara[ 1 ] = (sal_Int16)aFract.numerator();
+            aEquation.nPara[ 2 ] = (sal_Int16)aFract.denominator();
             aRet.Type = EnhancedCustomShapeParameterType::EQUATION;
             aRet.Value <<= (sal_Int32)rEquations.size();
             rEquations.push_back( aEquation );
diff --git a/svx/source/dialog/connctrl.cxx b/svx/source/dialog/connctrl.cxx
index a2c56212eec2..97454dc46219 100644
--- a/svx/source/dialog/connctrl.cxx
+++ b/svx/source/dialog/connctrl.cxx
@@ -113,9 +113,9 @@ void SvxXConnectionPreview::AdaptSize()
             aNewSize.Height()= (long) ( (double) nWidth / fRectWH );
         }
 
-        Fraction aFrac1( aWinSize.Width(), aRect.GetWidth() );
-        Fraction aFrac2( aWinSize.Height(), aRect.GetHeight() );
-        Fraction aMinFrac( aFrac1 <= aFrac2 ? aFrac1 : aFrac2 );
+        boost::rational<long> aFrac1( aWinSize.Width(), aRect.GetWidth() );
+        boost::rational<long> aFrac2( aWinSize.Height(), aRect.GetHeight() );
+        boost::rational<long> aMinFrac( aFrac1 <= aFrac2 ? aFrac1 : aFrac2 );
 
         // Implement MapMode
         aDisplayMap.SetScaleX( aMinFrac );
@@ -261,29 +261,29 @@ void SvxXConnectionPreview::MouseButtonDown( const MouseEvent& rMEvt )
     if( bZoomIn || bZoomOut )
     {
         MapMode aMapMode = GetMapMode();
-        Fraction aXFrac = aMapMode.GetScaleX();
-        Fraction aYFrac = aMapMode.GetScaleY();
-        boost::scoped_ptr<Fraction> pMultFrac;
+        boost::rational<long> aXFrac = aMapMode.GetScaleX();
+        boost::rational<long> aYFrac = aMapMode.GetScaleY();
+        boost::scoped_ptr<boost::rational<long>> pMultFrac;
 
         if( bZoomIn )
         {
             if( bCtrl )
-                pMultFrac.reset(new Fraction( 3, 2 ));
+                pMultFrac.reset(new boost::rational<long>( 3, 2 ));
             else
-                pMultFrac.reset(new Fraction( 11, 10 ));
+                pMultFrac.reset(new boost::rational<long>( 11, 10 ));
         }
         else
         {
             if( bCtrl )
-                pMultFrac.reset(new Fraction( 2, 3 ));
+                pMultFrac.reset(new boost::rational<long>( 2, 3 ));
             else
-                pMultFrac.reset(new Fraction( 10, 11 ));
+                pMultFrac.reset(new boost::rational<long>( 10, 11 ));
         }
 
         aXFrac *= *pMultFrac;
         aYFrac *= *pMultFrac;
-        if( (double)aXFrac > 0.001 && (double)aXFrac < 1000.0 &&
-            (double)aYFrac > 0.001 && (double)aYFrac < 1000.0 )
+        if( boost::rational_cast<double>(aXFrac) > 0.001 && boost::rational_cast<double>(aXFrac) < 1000.0 &&
+            boost::rational_cast<double>(aYFrac) > 0.001 && boost::rational_cast<double>(aYFrac) < 1000.0 )
         {
             aMapMode.SetScaleX( aXFrac );
             aMapMode.SetScaleY( aYFrac );
@@ -292,8 +292,8 @@ void SvxXConnectionPreview::MouseButtonDown( const MouseEvent& rMEvt )
             Size aOutSize( GetOutputSize() );
 
             Point aPt( aMapMode.GetOrigin() );
-            long nX = (long)( ( (double)aOutSize.Width() - ( (double)aOutSize.Width() * (double)*pMultFrac  ) ) / 2.0 + 0.5 );
-            long nY = (long)( ( (double)aOutSize.Height() - ( (double)aOutSize.Height() * (double)*pMultFrac  ) ) / 2.0 + 0.5 );
+            long nX = (long)( ( (double)aOutSize.Width() - ( (double)aOutSize.Width() * boost::rational_cast<double>(* pMultFrac)  ) ) / 2.0 + 0.5 );
+            long nY = (long)( ( (double)aOutSize.Height() - ( (double)aOutSize.Height() * boost::rational_cast<double>(* pMultFrac)  ) ) / 2.0 + 0.5 );
             aPt.X() +=  nX;
             aPt.Y() +=  nY;
 
diff --git a/svx/source/dialog/graphctl.cxx b/svx/source/dialog/graphctl.cxx
index 0c590d3becce..59f402538299 100644
--- a/svx/source/dialog/graphctl.cxx
+++ b/svx/source/dialog/graphctl.cxx
@@ -128,7 +128,7 @@ void GraphCtrl::InitSdrModel()
     pModel = new SdrModel;
     pModel->GetItemPool().FreezeIdRanges();
     pModel->SetScaleUnit( aMap100.GetMapUnit() );
-    pModel->SetScaleFraction( Fraction( 1, 1 ) );
+    pModel->SetScaleFraction( boost::rational<long>( 1, 1 ) );
     pModel->SetDefaultFontHeight( 500 );
 
     pPage = new SdrPage( *pModel );
@@ -225,8 +225,8 @@ void GraphCtrl::Resize()
         aNewPos.Y() = ( nHeight - aNewSize.Height() ) >> 1;
 
         // Implementing MapMode for Engine
-        aDisplayMap.SetScaleX( Fraction( aNewSize.Width(), aGraphSize.Width() ) );
-        aDisplayMap.SetScaleY( Fraction( aNewSize.Height(), aGraphSize.Height() ) );
+        aDisplayMap.SetScaleX( boost::rational<long>( aNewSize.Width(), aGraphSize.Width() ) );
+        aDisplayMap.SetScaleY( boost::rational<long>( aNewSize.Height(), aGraphSize.Height() ) );
 
         aDisplayMap.SetOrigin( LogicToLogic( aNewPos, aMap100, aDisplayMap ) );
         SetMapMode( aDisplayMap );
diff --git a/svx/source/dialog/measctrl.cxx b/svx/source/dialog/measctrl.cxx
index 8810a874ba91..8206ea373637 100644
--- a/svx/source/dialog/measctrl.cxx
+++ b/svx/source/dialog/measctrl.cxx
@@ -34,8 +34,8 @@ SvxXMeasurePreview::SvxXMeasurePreview( vcl::Window* pParent, WinBits nStyle)
 
     // Scale: 1:2
     MapMode aMapMode = GetMapMode();
-    aMapMode.SetScaleX( Fraction( 1, 2 ) );
-    aMapMode.SetScaleY( Fraction( 1, 2 ) );
+    aMapMode.SetScaleX( boost::rational<long>( 1, 2 ) );
+    aMapMode.SetScaleY( boost::rational<long>( 1, 2 ) );
     SetMapMode( aMapMode );
 
     Size aSize = GetOutputSize();
@@ -109,29 +109,29 @@ void SvxXMeasurePreview::MouseButtonDown( const MouseEvent& rMEvt )
     if( bZoomIn || bZoomOut )
     {
         MapMode aMapMode = GetMapMode();
-        Fraction aXFrac = aMapMode.GetScaleX();
-        Fraction aYFrac = aMapMode.GetScaleY();
-        boost::scoped_ptr<Fraction> pMultFrac;
+        boost::rational<long> aXFrac = aMapMode.GetScaleX();
+        boost::rational<long> aYFrac = aMapMode.GetScaleY();
+        boost::scoped_ptr<boost::rational<long>> pMultFrac;
 
         if( bZoomIn )
         {
             if( bCtrl )
-                pMultFrac.reset(new Fraction( 3, 2 ));
+                pMultFrac.reset(new boost::rational<long>( 3, 2 ));
             else
-                pMultFrac.reset(new Fraction( 11, 10 ));
+                pMultFrac.reset(new boost::rational<long>( 11, 10 ));
         }
         else
         {
             if( bCtrl )
-                pMultFrac.reset(new Fraction( 2, 3 ));
+                pMultFrac.reset(new boost::rational<long>( 2, 3 ));
             else
-                pMultFrac.reset(new Fraction( 10, 11 ));
+                pMultFrac.reset(new boost::rational<long>( 10, 11 ));
         }
 
         aXFrac *= *pMultFrac;
         aYFrac *= *pMultFrac;
-        if( (double)aXFrac > 0.001 && (double)aXFrac < 1000.0 &&
-            (double)aYFrac > 0.001 && (double)aYFrac < 1000.0 )
+        if( boost::rational_cast<double>(aXFrac) > 0.001 && boost::rational_cast<double>(aXFrac) < 1000.0 &&
+            boost::rational_cast<double>(aYFrac) > 0.001 && boost::rational_cast<double>(aYFrac) < 1000.0 )
         {
             aMapMode.SetScaleX( aXFrac );
             aMapMode.SetScaleY( aYFrac );
@@ -140,8 +140,8 @@ void SvxXMeasurePreview::MouseButtonDown( const MouseEvent& rMEvt )
             Size aOutSize( GetOutputSize() );
 
             Point aPt( aMapMode.GetOrigin() );
-            long nX = (long)( ( (double)aOutSize.Width() - ( (double)aOutSize.Width() * (double)*pMultFrac  ) ) / 2.0 + 0.5 );
-            long nY = (long)( ( (double)aOutSize.Height() - ( (double)aOutSize.Height() * (double)*pMultFrac  ) ) / 2.0 + 0.5 );
+            long nX = (long)( ( (double)aOutSize.Width() - ( (double)aOutSize.Width() * boost::rational_cast<double>(* pMultFrac)  ) ) / 2.0 + 0.5 );
+            long nY = (long)( ( (double)aOutSize.Height() - ( (double)aOutSize.Height() * boost::rational_cast<double>(* pMultFrac)  ) ) / 2.0 + 0.5 );
             aPt.X() +=  nX;
             aPt.Y() +=  nY;
 
diff --git a/svx/source/dialog/pagectrl.cxx b/svx/source/dialog/pagectrl.cxx
index fa7b9befa814..7aa7e8b167ed 100644
--- a/svx/source/dialog/pagectrl.cxx
+++ b/svx/source/dialog/pagectrl.cxx
@@ -102,8 +102,8 @@ extern "C" SAL_DLLPUBLIC_EXPORT vcl::Window* SAL_CALL makeSvxPageWindow(vcl::Win
 
 void SvxPageWindow::Paint(const Rectangle&)
 {
-    Fraction aXScale(aWinSize.Width(),std::max((long)(aSize.Width() * 2 + aSize.Width() / 8),1L));
-    Fraction aYScale(aWinSize.Height(),std::max(aSize.Height(),1L));
+    boost::rational<long> aXScale(aWinSize.Width(),std::max((long)(aSize.Width() * 2 + aSize.Width() / 8),1L));
+    boost::rational<long> aYScale(aWinSize.Height(),std::max(aSize.Height(),1L));
     MapMode aMapMode(GetMapMode());
 
     if(aYScale < aXScale)
@@ -126,9 +126,9 @@ void SvxPageWindow::Paint(const Rectangle&)
         if (aSize.Width() > aSize.Height())
         {
             // Draw Landscape page of the same size
-            Fraction aX = aMapMode.GetScaleX();
-            Fraction aY = aMapMode.GetScaleY();
-            Fraction a2(1.5);
+            boost::rational<long> aX = aMapMode.GetScaleX();
+            boost::rational<long> aY = aMapMode.GetScaleY();
+            boost::rational<long> a2(1.5);
             aX *= a2;
             aY *= a2;
             aMapMode.SetScaleX(aX);
diff --git a/svx/source/engine3d/obj3d.cxx b/svx/source/engine3d/obj3d.cxx
index 06eac9c647d7..998d9d80dbbc 100644
--- a/svx/source/engine3d/obj3d.cxx
+++ b/svx/source/engine3d/obj3d.cxx
@@ -322,7 +322,7 @@ void E3dObject::SetModel(SdrModel* pNewModel)
 
 // resize object, used from old 2d interfaces, e.g. in Move/Scale dialog (F4)
 
-void E3dObject::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void E3dObject::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     // Movement in X, Y in the eye coordinate system
     E3dScene* pScene = GetScene();
@@ -345,8 +345,8 @@ void E3dObject::NbcResize(const Point& rRef, const Fraction& xFact, const Fracti
         aScaleCenter3D = aInverseViewToEye * aScaleCenter3D;
 
         // Get scale factors
-        double fScaleX(xFact);
-        double fScaleY(yFact);
+        double fScaleX(boost::rational_cast<double>(xFact));
+        double fScaleY(boost::rational_cast<double>(yFact));
 
         // build transform
         basegfx::B3DHomMatrix aInverseOrientation(aViewInfo3D.getOrientation());
diff --git a/svx/source/engine3d/scene3d.cxx b/svx/source/engine3d/scene3d.cxx
index 9d5336f02c8c..54c582bd2392 100644
--- a/svx/source/engine3d/scene3d.cxx
+++ b/svx/source/engine3d/scene3d.cxx
@@ -323,8 +323,8 @@ void E3dScene::NbcMove(const Size& rSize)
     NbcSetSnapRect(aNewSnapRect);
 }
 
-void E3dScene::NbcResize(const Point& rRef, const Fraction& rXFact,
-                                            const Fraction& rYFact)
+void E3dScene::NbcResize(const Point& rRef, const boost::rational<long>& rXFact,
+                                            const boost::rational<long>& rYFact)
 {
     Rectangle aNewSnapRect = GetSnapRect();
     ResizeRect(aNewSnapRect, rRef, rXFact, rYFact);
diff --git a/svx/source/fmcomp/gridctrl.cxx b/svx/source/fmcomp/gridctrl.cxx
index d9e92c3be61f..317e2d1069b8 100644
--- a/svx/source/fmcomp/gridctrl.cxx
+++ b/svx/source/fmcomp/gridctrl.cxx
@@ -736,7 +736,7 @@ void DbGridControl::NavigationBar::StateChanged( StateChangedType nType )
 
         case STATE_CHANGE_ZOOM:
         {
-            Fraction aZoom = GetZoom();
+            boost::rational<long> aZoom = GetZoom();
 
             // not all of these controls need to know the new zoom, but to be sure ...
             vcl::Font aFont( GetSettings().GetStyleSettings().GetFieldFont() );
diff --git a/svx/source/form/fmvwimp.cxx b/svx/source/form/fmvwimp.cxx
index 653feff1774a..212c9de8123d 100644
--- a/svx/source/form/fmvwimp.cxx
+++ b/svx/source/form/fmvwimp.cxx
@@ -1450,8 +1450,8 @@ SdrObject* FmXFormView::implCreateXFormsControl( const ::svx::OXFormsDescriptor
             const sal_uInt16 nObjID = OBJ_FM_BUTTON;
             ::Size controlSize(4000, 500);
             FmFormObj *pControl = static_cast<FmFormObj*>(SdrObjFactory::MakeNewObject( FmFormInventor, nObjID, NULL, NULL ));
-            controlSize.Width() = Fraction(controlSize.Width(), 1) * eTargetMode.GetScaleX();
-            controlSize.Height() = Fraction(controlSize.Height(), 1) * eTargetMode.GetScaleY();
+            controlSize.Width() = boost::rational_cast<long>(controlSize.Width() * eTargetMode.GetScaleX());
+            controlSize.Height() = boost::rational_cast<long>(controlSize.Height() * eTargetMode.GetScaleY());
             ::Point controlPos( OutputDevice::LogicToLogic( ::Point( controlSize.Width(), 0 ), eSourceMode, eTargetMode ) );
             ::Rectangle controlRect( controlPos, OutputDevice::LogicToLogic( controlSize, eSourceMode, eTargetMode ) );
             pControl->SetLogicRect(controlRect);
@@ -1541,8 +1541,8 @@ bool FmXFormView::createControlLabelPair( OutputDevice& _rOutDev, sal_Int32 _nXO
     aRealSize.Height()= aDefSize.Height();
 
     // adjust to scaling of the target device (#53523#)
-    aRealSize.Width() = long(Fraction(aRealSize.Width(), 1) * eTargetMode.GetScaleX());
-    aRealSize.Height() = long(Fraction(aRealSize.Height(), 1) * eTargetMode.GetScaleY());
+    aRealSize.Width() = boost::rational_cast<long>(aRealSize.Width() * eTargetMode.GetScaleX());
+    aRealSize.Height() = boost::rational_cast<long>(aRealSize.Height() * eTargetMode.GetScaleY());
 
     // for boolean fields, we do not create a label, but just a checkbox
     bool bNeedLabel = ( _nControlObjectID != OBJ_FM_CHECKBOX );
@@ -1608,8 +1608,8 @@ bool FmXFormView::createControlLabelPair( OutputDevice& _rOutDev, sal_Int32 _nXO
     if ( OBJ_FM_IMAGECONTROL == _nControlObjectID )
         aControlSize = aDefImageSize;
 
-    aControlSize.Width() = long(Fraction(aControlSize.Width(), 1) * eTargetMode.GetScaleX());
-    aControlSize.Height() = long(Fraction(aControlSize.Height(), 1) * eTargetMode.GetScaleY());
+    aControlSize.Width() = boost::rational_cast<long>(aControlSize.Width() * eTargetMode.GetScaleX());
+    aControlSize.Height() = boost::rational_cast<long>(aControlSize.Height() * eTargetMode.GetScaleY());
 
     pControl->SetLogicRect( ::Rectangle(
         OutputDevice::LogicToLogic( ::Point( aRealSize.Width() + _nXOffsetMM, _nYOffsetMM ), eSourceMode, eTargetMode ),
diff --git a/svx/source/sdr/contact/viewobjectcontactofunocontrol.cxx b/svx/source/sdr/contact/viewobjectcontactofunocontrol.cxx
index 096da89be126..a87b44850ca0 100644
--- a/svx/source/sdr/contact/viewobjectcontactofunocontrol.cxx
+++ b/svx/source/sdr/contact/viewobjectcontactofunocontrol.cxx
@@ -279,9 +279,9 @@ namespace sdr { namespace contact {
         ::basegfx::B2DVector aZoom( 1, 1 );
         if ( pWindow )
         {
-            const Fraction& rZoom( pWindow->GetZoom() );
-            aZoom.setX( (double)rZoom );
-            aZoom.setY( (double)rZoom );
+            const boost::rational<long>& rZoom( pWindow->GetZoom() );
+            aZoom.setX( boost::rational_cast<double>(rZoom) );
+            aZoom.setY( boost::rational_cast<double>(rZoom) );
         }
         return aZoom;
     }
@@ -867,8 +867,8 @@ namespace sdr { namespace contact {
 
         ::basegfx::B2DHomMatrix aScaleNormalization;
         MapMode aCurrentDeviceMapMode( rPageViewDevice.GetMapMode() );
-        aScaleNormalization.set( 0, 0, (double)aCurrentDeviceMapMode.GetScaleX() );
-        aScaleNormalization.set( 1, 1, (double)aCurrentDeviceMapMode.GetScaleY() );
+        aScaleNormalization.set( 0, 0, boost::rational_cast<double>(aCurrentDeviceMapMode.GetScaleX()) );
+        aScaleNormalization.set( 1, 1, boost::rational_cast<double>(aCurrentDeviceMapMode.GetScaleY()) );
         m_aZoomLevelNormalization *= aScaleNormalization;
 
     #if OSL_DEBUG_LEVEL > 1
diff --git a/svx/source/sdr/properties/attributeproperties.cxx b/svx/source/sdr/properties/attributeproperties.cxx
index 78c6895208f0..21738416f926 100644
--- a/svx/source/sdr/properties/attributeproperties.cxx
+++ b/svx/source/sdr/properties/attributeproperties.cxx
@@ -318,7 +318,7 @@ namespace sdr
                     MapUnit aOldUnit(pOldModel->GetScaleUnit());
                     MapUnit aNewUnit(pNewModel->GetScaleUnit());
                     bool bScaleUnitChanged(aNewUnit != aOldUnit);
-                    Fraction aMetricFactor;
+                    boost::rational<long> aMetricFactor;
 
                     if(bScaleUnitChanged)
                     {
diff --git a/svx/source/sdr/properties/defaultproperties.cxx b/svx/source/sdr/properties/defaultproperties.cxx
index c6f09bd5bb7f..08ff3d349397 100644
--- a/svx/source/sdr/properties/defaultproperties.cxx
+++ b/svx/source/sdr/properties/defaultproperties.cxx
@@ -211,7 +211,7 @@ namespace sdr
         {
         }
 
-        void DefaultProperties::Scale(const Fraction& rScale)
+        void DefaultProperties::Scale(const boost::rational<long>& rScale)
         {
             if(mpItemSet)
             {
diff --git a/svx/source/sdr/properties/itemsettools.cxx b/svx/source/sdr/properties/itemsettools.cxx
index 835f23552c64..e7826272fa2f 100644
--- a/svx/source/sdr/properties/itemsettools.cxx
+++ b/svx/source/sdr/properties/itemsettools.cxx
@@ -93,15 +93,10 @@ namespace sdr
 {
     namespace properties
     {
-        void ScaleItemSet(SfxItemSet& rSet, const Fraction& rScale)
+        void ScaleItemSet(SfxItemSet& rSet, const boost::rational<long>& rScale)
         {
-            sal_Int32 nMul(rScale.GetNumerator());
-            sal_Int32 nDiv(rScale.GetDenominator());
-
-            if(!rScale.IsValid() || !nDiv)
-            {
-                return;
-            }
+            sal_Int32 nMul(rScale.numerator());
+            sal_Int32 nDiv(rScale.denominator());
 
             SfxWhichIter aIter(rSet);
             sal_uInt16 nWhich(aIter.FirstWhich());
diff --git a/svx/source/sdr/properties/properties.cxx b/svx/source/sdr/properties/properties.cxx
index 16af145d4946..5865948e405f 100644
--- a/svx/source/sdr/properties/properties.cxx
+++ b/svx/source/sdr/properties/properties.cxx
@@ -74,7 +74,7 @@ namespace sdr
             ClearObjectItem(nWhich);
         }
 
-        void BaseProperties::Scale(const Fraction& /*rScale*/)
+        void BaseProperties::Scale(const boost::rational<long>& /*rScale*/)
         {
             // default implementation does nothing; overload where
             // an ItemSet is implemented.
diff --git a/svx/source/sidebar/possize/PosSizePropertyPanel.cxx b/svx/source/sidebar/possize/PosSizePropertyPanel.cxx
index 0ef3d8ec540f..2e1346de8355 100644
--- a/svx/source/sidebar/possize/PosSizePropertyPanel.cxx
+++ b/svx/source/sidebar/possize/PosSizePropertyPanel.cxx
@@ -508,7 +508,7 @@ IMPL_LINK( PosSizePropertyPanel, AngleModifiedHdl, void *, EMPTYARG )
     sal_Int64 nTmp = dTmp*100;
 
     // #i123993# Need to take UIScale into account when executing rotations
-    const double fUIScale(mpView && mpView->GetModel() ? double(mpView->GetModel()->GetUIScale()) : 1.0);
+    const double fUIScale(mpView && mpView->GetModel() ? boost::rational_cast<double>(mpView->GetModel()->GetUIScale()) : 1.0);
     SfxInt32Item aAngleItem( SID_ATTR_TRANSFORM_ANGLE,(sal_uInt32) nTmp);
     SfxInt32Item aRotXItem( SID_ATTR_TRANSFORM_ROT_X, basegfx::fround(mlRotX * fUIScale));
     SfxInt32Item aRotYItem( SID_ATTR_TRANSFORM_ROT_Y, basegfx::fround(mlRotY * fUIScale));
@@ -526,7 +526,7 @@ IMPL_LINK( PosSizePropertyPanel, RotationHdl, void *, EMPTYARG )
     sal_Int32 nTmp = mpDial->GetRotation();
 
     // #i123993# Need to take UIScale into account when executing rotations
-    const double fUIScale(mpView && mpView->GetModel() ? double(mpView->GetModel()->GetUIScale()) : 1.0);
+    const double fUIScale(mpView && mpView->GetModel() ? boost::rational_cast<double>(mpView->GetModel()->GetUIScale()) : 1.0);
     SfxInt32Item aAngleItem( SID_ATTR_TRANSFORM_ANGLE,(sal_uInt32) nTmp);
     SfxInt32Item aRotXItem( SID_ATTR_TRANSFORM_ROT_X, basegfx::fround(mlRotX * fUIScale));
     SfxInt32Item aRotYItem( SID_ATTR_TRANSFORM_ROT_Y, basegfx::fround(mlRotY * fUIScale));
@@ -604,7 +604,7 @@ void PosSizePropertyPanel::NotifyItemUpdate(
                 {
                     long mlOldWidth1 = pWidthItem->GetValue();
 
-                    mlOldWidth1 = Fraction( mlOldWidth1 ) / maUIScale;
+                    mlOldWidth1 = boost::rational_cast<long>(mlOldWidth1 / maUIScale);
                     SetFieldUnit( *mpMtrWidth, meDlgUnit, true );
                     SetMetricValue( *mpMtrWidth, mlOldWidth1, mePoolUnit );
                     mlOldWidth = mlOldWidth1;
@@ -624,7 +624,7 @@ void PosSizePropertyPanel::NotifyItemUpdate(
                 {
                     long mlOldHeight1 = pHeightItem->GetValue();
 
-                    mlOldHeight1 = Fraction( mlOldHeight1 ) / maUIScale;
+                    mlOldHeight1 = boost::rational_cast<long>(mlOldHeight1 / maUIScale);
                     SetFieldUnit( *mpMtrHeight, meDlgUnit, true );
                     SetMetricValue( *mpMtrHeight, mlOldHeight1, mePoolUnit );
                     mlOldHeight = mlOldHeight1;
@@ -643,7 +643,7 @@ void PosSizePropertyPanel::NotifyItemUpdate(
                 if(pItem)
                 {
                     long nTmp = pItem->GetValue();
-                    nTmp = Fraction( nTmp ) / maUIScale;
+                    nTmp = boost::rational_cast<long>(nTmp / maUIScale);
                     SetFieldUnit( *mpMtrPosX, meDlgUnit, true );
                     SetMetricValue( *mpMtrPosX, nTmp, mePoolUnit );
                     break;
@@ -661,7 +661,7 @@ void PosSizePropertyPanel::NotifyItemUpdate(
                 if(pItem)
                 {
                     long nTmp = pItem->GetValue();
-                    nTmp = Fraction( nTmp ) / maUIScale;
+                    nTmp = boost::rational_cast<long>(nTmp / maUIScale);
                     SetFieldUnit( *mpMtrPosY, meDlgUnit, true );
                     SetMetricValue( *mpMtrPosY, nTmp, mePoolUnit );
                     break;
@@ -679,7 +679,7 @@ void PosSizePropertyPanel::NotifyItemUpdate(
                 if(pItem)
                 {
                     mlRotX = pItem->GetValue();
-                    mlRotX = Fraction( mlRotX ) / maUIScale;
+                    mlRotX = boost::rational_cast<long>(mlRotX / maUIScale);
                 }
             }
             break;
@@ -692,7 +692,7 @@ void PosSizePropertyPanel::NotifyItemUpdate(
                 if(pItem)
                 {
                     mlRotY = pItem->GetValue();
-                    mlRotY = Fraction( mlRotY ) / maUIScale;
+                    mlRotY = boost::rational_cast<long>(mlRotY / maUIScale);
                 }
             }
             break;
@@ -898,19 +898,19 @@ void PosSizePropertyPanel::executeSize()
 {
     if ( mpMtrWidth->IsValueModified() || mpMtrHeight->IsValueModified())
     {
-        Fraction aUIScale = mpView->GetModel()->GetUIScale();
+        boost::rational<long> aUIScale = mpView->GetModel()->GetUIScale();
 
         // get Width
         double nWidth = (double)mpMtrWidth->GetValue( meDlgUnit );
         nWidth = MetricField::ConvertDoubleValue( nWidth, mpMtrWidth->GetBaseValue(), mpMtrWidth->GetDecimalDigits(), meDlgUnit, FUNIT_100TH_MM );
-        long lWidth = (long)(nWidth * (double)aUIScale);
+        long lWidth = (long)(nWidth * boost::rational_cast<double>(aUIScale));
         lWidth = OutputDevice::LogicToLogic( lWidth, MAP_100TH_MM, (MapUnit)mePoolUnit );
         lWidth = (long)mpMtrWidth->Denormalize( lWidth );
 
         // get Height
         double nHeight = (double)mpMtrHeight->GetValue( meDlgUnit );
         nHeight = MetricField::ConvertDoubleValue( nHeight, mpMtrHeight->GetBaseValue(), mpMtrHeight->GetDecimalDigits(), meDlgUnit, FUNIT_100TH_MM );
-        long lHeight = (long)(nHeight * (double)aUIScale);
+        long lHeight = (long)(nHeight * boost::rational_cast<double>(aUIScale));
         lHeight = OutputDevice::LogicToLogic( lHeight, MAP_100TH_MM, (MapUnit)mePoolUnit );
         lHeight = (long)mpMtrWidth->Denormalize( lHeight );
 
@@ -953,11 +953,11 @@ void PosSizePropertyPanel::executePosX()
         maRect = mpView->GetAllMarkedRect();
         aRect = mpView->GetAllMarkedRect();
 
-        Fraction aUIScale = mpView->GetModel()->GetUIScale();
+        boost::rational<long> aUIScale = mpView->GetModel()->GetUIScale();
         lX += maAnchorPos.X();
-        lX = Fraction( lX ) * aUIScale;
+        lX = boost::rational_cast<long>(lX * aUIScale);
         lY += maAnchorPos.Y();
-        lY = Fraction( lY ) * aUIScale;
+        lY = boost::rational_cast<long>(lY * aUIScale);
 
         SfxInt32Item aPosXItem( SID_ATTR_TRANSFORM_POS_X,(sal_uInt32) lX);
         SfxInt32Item aPosYItem( SID_ATTR_TRANSFORM_POS_Y,(sal_uInt32) lY);
@@ -980,11 +980,11 @@ void PosSizePropertyPanel::executePosY()
         maRect = mpView->GetAllMarkedRect();
         aRect = mpView->GetAllMarkedRect();
 
-        Fraction aUIScale = mpView->GetModel()->GetUIScale();
+        boost::rational<long> aUIScale = mpView->GetModel()->GetUIScale();
         lX += maAnchorPos.X();
-        lX = Fraction( lX ) * aUIScale;
+        lX = boost::rational_cast<long>(lX * aUIScale);
         lY += maAnchorPos.Y();
-        lY = Fraction( lY ) * aUIScale;
+        lY = boost::rational_cast<long>(lY * aUIScale);
 
         SfxInt32Item aPosXItem( SID_ATTR_TRANSFORM_POS_X,(sal_uInt32) lX);
         SfxInt32Item aPosYItem( SID_ATTR_TRANSFORM_POS_Y,(sal_uInt32) lY);
@@ -1158,7 +1158,7 @@ void PosSizePropertyPanel::DisableControls()
 
 void PosSizePropertyPanel::UpdateUIScale()
 {
-    const Fraction aUIScale (mpView->GetModel()->GetUIScale());
+    const boost::rational<long> aUIScale (mpView->GetModel()->GetUIScale());
     if (maUIScale != aUIScale)
     {
         // UI scale has changed.
diff --git a/svx/source/sidebar/possize/PosSizePropertyPanel.hxx b/svx/source/sidebar/possize/PosSizePropertyPanel.hxx
index 8983c23deac6..b5718ef54b69 100644
--- a/svx/source/sidebar/possize/PosSizePropertyPanel.hxx
+++ b/svx/source/sidebar/possize/PosSizePropertyPanel.hxx
@@ -102,7 +102,7 @@ private:
     Point                                   maAnchorPos;    //anchor position
     long                                    mlRotX;
     long                                    mlRotY;
-    Fraction                                maUIScale;
+    boost::rational<long>                   maUIScale;
     SfxMapUnit                              mePoolUnit;
     FieldUnit                               meDlgUnit;
 
diff --git a/svx/source/svdraw/svdattr.cxx b/svx/source/svdraw/svdattr.cxx
index 1e012d96bac3..216107aa9930 100644
--- a/svx/source/svdraw/svdattr.cxx
+++ b/svx/source/svdraw/svdattr.cxx
@@ -630,7 +630,7 @@ SdrFractionItem::SdrFractionItem(sal_uInt16 nId, SvStream& rIn):
     sal_Int32 nMul,nDiv;
     rIn.ReadInt32( nMul );
     rIn.ReadInt32( nDiv );
-    nValue=Fraction(nMul,nDiv);
+    nValue=boost::rational<long>(nMul,nDiv);
 }
 
 bool SdrFractionItem::operator==(const SfxPoolItem& rCmp) const
@@ -643,19 +643,12 @@ bool SdrFractionItem::GetPresentation(
     SfxItemPresentation ePresentation, SfxMapUnit /*eCoreMetric*/,
     SfxMapUnit /*ePresentationMetric*/, OUString &rText, const IntlWrapper *) const
 {
-    if(nValue.IsValid())
-    {
-        sal_Int32 nDiv = nValue.GetDenominator();
-        rText = OUString::number(nValue.GetNumerator());
+    sal_Int32 nDiv = nValue.denominator();
+    rText = OUString::number(nValue.numerator());
 
-        if(nDiv != 1)
-        {
-            rText = rText + "/" + OUString::number(nDiv);
-        }
-    }
-    else
+    if(nDiv != 1)
     {
-        rText = "?";
+        rText = rText + "/" + OUString::number(nDiv);
     }
 
     if(ePresentation == SFX_ITEM_PRESENTATION_COMPLETE)
@@ -679,8 +672,8 @@ SfxPoolItem* SdrFractionItem::Create(SvStream& rIn, sal_uInt16 /*nVer*/) const
 
 SvStream& SdrFractionItem::Store(SvStream& rOut, sal_uInt16 /*nItemVers*/) const
 {
-    rOut.WriteInt32( nValue.GetNumerator() );
-    rOut.WriteInt32( nValue.GetDenominator() );
+    rOut.WriteInt32( nValue.numerator() );
+    rOut.WriteInt32( nValue.denominator() );
     return rOut;
 }
 
@@ -699,16 +692,9 @@ bool SdrScaleItem::GetPresentation(
     SfxItemPresentation ePresentation, SfxMapUnit /*eCoreMetric*/,
     SfxMapUnit /*ePresentationMetric*/, OUString &rText, const IntlWrapper *) const
 {
-    if(GetValue().IsValid())
-    {
-        sal_Int32 nDiv = GetValue().GetDenominator();
+    sal_Int32 nDiv = GetValue().denominator();
 
-        rText = OUString::number(GetValue().GetNumerator()) + ":" + OUString::number(nDiv);
-    }
-    else
-    {
-        rText = "?";
-    }
+    rText = OUString::number(GetValue().numerator()) + ":" + OUString::number(nDiv);
 
     if(ePresentation == SFX_ITEM_PRESENTATION_COMPLETE)
     {
diff --git a/svx/source/svdraw/svddrag.cxx b/svx/source/svdraw/svddrag.cxx
index 3c0f109954b0..fda560eb2a43 100644
--- a/svx/source/svdraw/svddrag.cxx
+++ b/svx/source/svdraw/svddrag.cxx
@@ -106,22 +106,22 @@ bool SdrDragStat::CheckMinMoved(const Point& rPnt)
     return bMinMoved;
 }
 
-Fraction SdrDragStat::GetXFact() const
+boost::rational<long> SdrDragStat::GetXFact() const
 {
     long nMul=GetNow().X()-aRef1.X();
     long nDiv=GetPrev().X()-aRef1.X();
     if (nDiv==0) nDiv=1;
     if (bHorFixed) { nMul=1; nDiv=1; }
-    return Fraction(nMul,nDiv);
+    return boost::rational<long>(nMul,nDiv);
 }
 
-Fraction SdrDragStat::GetYFact() const
+boost::rational<long> SdrDragStat::GetYFact() const
 {
     long nMul=GetNow().Y()-aRef1.Y();
     long nDiv=GetPrev().Y()-aRef1.Y();
     if (nDiv==0) nDiv=1;
     if (bVerFixed) { nMul=1; nDiv=1; }
-    return Fraction(nMul,nDiv);
+    return boost::rational<long>(nMul,nDiv);
 }
 
 void SdrDragStat::TakeCreateRect(Rectangle& rRect) const
diff --git a/svx/source/svdraw/svddrgm1.hxx b/svx/source/svdraw/svddrgm1.hxx
index 972c17de91ac..7b038800b5e2 100644
--- a/svx/source/svdraw/svddrgm1.hxx
+++ b/svx/source/svdraw/svddrgm1.hxx
@@ -74,7 +74,7 @@ public:
 class SdrDragShear : public SdrDragMethod
 {
 private:
-    Fraction                    aFact;
+    boost::rational<long>       aFact;
     long                        nWink0;
     long                        nWink;
     double                      nTan;
@@ -151,7 +151,7 @@ private:
     Point                       aMarkCenter;
     Point                       aCenter;
     Point                       aStart;
-    Fraction                    aFact;
+    boost::rational<long>       aFact;
     Point                       aRad;
     bool                        bContortionAllowed;
     bool                        bNoContortionAllowed;
diff --git a/svx/source/svdraw/svddrgmt.cxx b/svx/source/svdraw/svddrgmt.cxx
index 9c92001b56af..a5b671cbd38a 100644
--- a/svx/source/svdraw/svddrgmt.cxx
+++ b/svx/source/svdraw/svddrgmt.cxx
@@ -1779,7 +1779,7 @@ SdrDragResize::SdrDragResize(SdrDragView& rNewView)
 void SdrDragResize::TakeSdrDragComment(OUString& rStr) const
 {
     ImpTakeDescriptionStr(STR_DragMethResize, rStr);
-    Fraction aFact1(1,1);
+    boost::rational<long> aFact1(1,1);
     Point aStart(DragStat().GetStart());
     Point aRef(DragStat().GetRef1());
     sal_Int32 nXDiv(aStart.X() - aRef.X());
@@ -1878,7 +1878,7 @@ basegfx::B2DHomMatrix SdrDragResize::getCurrentTransformation()
 {
     basegfx::B2DHomMatrix aRetval(basegfx::tools::createTranslateB2DHomMatrix(
         -DragStat().Ref1().X(), -DragStat().Ref1().Y()));
-    aRetval.scale(aXFact, aYFact);
+    aRetval.scale(boost::rational_cast<double>(aXFact), boost::rational_cast<double>(aYFact));
     aRetval.translate(DragStat().Ref1().X(), DragStat().Ref1().Y());
 
     return aRetval;
@@ -1889,7 +1889,7 @@ void SdrDragResize::MoveSdrDrag(const Point& rNoSnapPnt)
     Point aPnt(GetSnapPos(rNoSnapPnt));
     Point aStart(DragStat().GetStart());
     Point aRef(DragStat().GetRef1());
-    Fraction aMaxFact(0x7FFFFFFF,1);
+    boost::rational<long> aMaxFact(0x7FFFFFFF,1);
     Rectangle aLR(getSdrDragView().GetWorkArea());
     bool bWorkArea=!aLR.IsEmpty();
     bool bDragLimit=IsDragLimit();
@@ -1920,7 +1920,7 @@ void SdrDragResize::MoveSdrDrag(const Point& rNoSnapPnt)
 
         if (aRef.X()>aSR.Left())
         {
-            Fraction aMax(aRef.X()-aLR.Left(),aRef.X()-aSR.Left());
+            boost::rational<long> aMax(aRef.X()-aLR.Left(),aRef.X()-aSR.Left());
 
             if (aMax<aMaxFact)
                 aMaxFact=aMax;
@@ -1928,7 +1928,7 @@ void SdrDragResize::MoveSdrDrag(const Point& rNoSnapPnt)
 
         if (aRef.X()<aSR.Right())
         {
-            Fraction aMax(aLR.Right()-aRef.X(),aSR.Right()-aRef.X());
+            boost::rational<long> aMax(aLR.Right()-aRef.X(),aSR.Right()-aRef.X());
 
             if (aMax<aMaxFact)
                 aMaxFact=aMax;
@@ -1936,7 +1936,7 @@ void SdrDragResize::MoveSdrDrag(const Point& rNoSnapPnt)
 
         if (aRef.Y()>aSR.Top())
         {
-            Fraction aMax(aRef.Y()-aLR.Top(),aRef.Y()-aSR.Top());
+            boost::rational<long> aMax(aRef.Y()-aLR.Top(),aRef.Y()-aSR.Top());
 
             if (aMax<aMaxFact)
                 aMaxFact=aMax;
@@ -1944,7 +1944,7 @@ void SdrDragResize::MoveSdrDrag(const Point& rNoSnapPnt)
 
         if (aRef.Y()<aSR.Bottom())
         {
-            Fraction aMax(aLR.Bottom()-aRef.Y(),aSR.Bottom()-aRef.Y());
+            boost::rational<long> aMax(aLR.Bottom()-aRef.Y(),aSR.Bottom()-aRef.Y());
 
             if (aMax<aMaxFact)
                 aMaxFact=aMax;
@@ -1979,7 +1979,7 @@ void SdrDragResize::MoveSdrDrag(const Point& rNoSnapPnt)
 
         if (bOrtho)
         {
-            if ((Fraction(nXMul,nXDiv)>Fraction(nYMul,nYDiv)) !=getSdrDragView().IsBigOrtho())
+            if ((boost::rational<long>(nXMul,nXDiv)>boost::rational<long>(nYMul,nYDiv)) !=getSdrDragView().IsBigOrtho())
             {
                 nXMul=nYMul;
                 nXDiv=nYDiv;
@@ -2027,8 +2027,8 @@ void SdrDragResize::MoveSdrDrag(const Point& rNoSnapPnt)
         }
     }
 
-    Fraction aNeuXFact(nXMul,nXDiv);
-    Fraction aNeuYFact(nYMul,nYDiv);
+    boost::rational<long> aNeuXFact(nXMul,nXDiv);
+    boost::rational<long> aNeuYFact(nYMul,nYDiv);
 
     if (bOrtho)
     {
@@ -2046,10 +2046,10 @@ void SdrDragResize::MoveSdrDrag(const Point& rNoSnapPnt)
     }
 
     if (bXNeg)
-        aNeuXFact=Fraction(-aNeuXFact.GetNumerator(),aNeuXFact.GetDenominator());
+        aNeuXFact=boost::rational<long>(-aNeuXFact.numerator(),aNeuXFact.denominator());
 
     if (bYNeg)
-        aNeuYFact=Fraction(-aNeuYFact.GetNumerator(),aNeuYFact.GetDenominator());
+        aNeuYFact=boost::rational<long>(-aNeuYFact.numerator(),aNeuYFact.denominator());
 
     if (DragStat().CheckMinMoved(aPnt))
     {
@@ -2317,12 +2317,12 @@ basegfx::B2DHomMatrix SdrDragShear::getCurrentTransformation()
     {
         if (bVertical)
         {
-            aRetval.scale(aFact, 1.0);
+            aRetval.scale(boost::rational_cast<double>(aFact), 1.0);
             aRetval.shearY(-nTan);
         }
         else
         {
-            aRetval.scale(1.0, aFact);
+            aRetval.scale(1.0, boost::rational_cast<double>(aFact));
             aRetval.shearX(-nTan);
         }
     }
@@ -2344,7 +2344,7 @@ void SdrDragShear::MoveSdrDrag(const Point& rPnt)
 
         Point aP0(DragStat().GetStart());
         Point aPnt(rPnt);
-        Fraction aNeuFact(1,1);
+        boost::rational<long> aNeuFact(1,1);
 
         // if angle snapping not activated, snap to raster (except when using slant)
         if (nSA==0 && !bSlant)
@@ -2389,11 +2389,11 @@ void SdrDragShear::MoveSdrDrag(const Point& rPnt)
 
                 if (bVertical)
                 {
-                    aNeuFact=Fraction(aPt2.X()-aRef.X(),aP0.X()-aRef.X());
+                    aNeuFact=boost::rational<long>(aPt2.X()-aRef.X(),aP0.X()-aRef.X());
                 }
                 else
                 {
-                    aNeuFact=Fraction(aPt2.Y()-aRef.Y(),aP0.Y()-aRef.Y());
+                    aNeuFact=boost::rational<long>(aPt2.Y()-aRef.Y(),aP0.Y()-aRef.Y());
                 }
             }
         }
@@ -2451,11 +2451,11 @@ void SdrDragShear::applyCurrentTransformationToSdrObject(SdrObject& rTarget)
     {
         if (bVertical)
         {
-            rTarget.Resize(DragStat().GetRef1(),aFact,Fraction(1,1));
+            rTarget.Resize(DragStat().GetRef1(),aFact,boost::rational<long>(1,1));
         }
         else
         {
-            rTarget.Resize(DragStat().GetRef1(),Fraction(1,1),aFact);
+            rTarget.Resize(DragStat().GetRef1(),boost::rational<long>(1,1),aFact);
         }
     }
 
@@ -2469,7 +2469,7 @@ bool SdrDragShear::EndSdrDrag(bool bCopy)
 {
     Hide();
 
-    if (bResize && aFact==Fraction(1,1))
+    if (bResize && aFact==boost::rational<long>(1,1))
         bResize=false;
 
     if (nWink!=0 || bResize)
@@ -2489,11 +2489,11 @@ bool SdrDragShear::EndSdrDrag(bool bCopy)
         {
             if (bVertical)
             {
-                getSdrDragView().ResizeMarkedObj(DragStat().GetRef1(),aFact,Fraction(1,1),bCopy);
+                getSdrDragView().ResizeMarkedObj(DragStat().GetRef1(),aFact,boost::rational<long>(1,1),bCopy);
             }
             else
             {
-                getSdrDragView().ResizeMarkedObj(DragStat().GetRef1(),Fraction(1,1),aFact,bCopy);
+                getSdrDragView().ResizeMarkedObj(DragStat().GetRef1(),boost::rational<long>(1,1),aFact,bCopy);
             }
 
             bCopy=false;
@@ -3016,7 +3016,7 @@ void SdrDragCrook::_MovAllPoints(basegfx::B2DPolyPolygon& rTarget)
 
                     if (bResize)
                     {
-                        Fraction aFact1(1,1);
+                        boost::rational<long> aFact1(1,1);
 
                         if (bVertical)
                         {
@@ -3108,7 +3108,7 @@ void SdrDragCrook::_MovCrookPoint(Point& rPnt, Point* pC1, Point* pC2)
 
     if (bResize)
     {
-        Fraction aFact1(1,1);
+        boost::rational<long> aFact1(1,1);
 
         if (bVert)
         {
@@ -3184,7 +3184,7 @@ void SdrDragCrook::MoveSdrDrag(const Point& rPnt)
         else
             bAtCenter=true;
 
-        Fraction aNeuFact(1,1);
+        boost::rational<long> aNeuFact(1,1);
         long dx1=aPnt.X()-aNeuCenter.X();
         long dy1=aPnt.Y()-aNeuCenter.Y();
         bValid=bVertical ? dx1!=0 : dy1!=0;
@@ -3254,7 +3254,7 @@ void SdrDragCrook::MoveSdrDrag(const Point& rPnt)
                 if (bAtCenter)
                     nMul*=2;
 
-                aNeuFact=Fraction(nMul,nMarkSize);
+                aNeuFact=boost::rational<long>(nMul,nMarkSize);
                 nWink=nPntWink;
             }
             else
@@ -3287,7 +3287,7 @@ void SdrDragCrook::MoveSdrDrag(const Point& rPnt)
                 nMul = std::abs(nMul);
             }
 
-            aNeuFact=Fraction(nMul,nDiv);
+            aNeuFact=boost::rational<long>(nMul,nDiv);
         }
 
         if (aNeuCenter!=aCenter || bNeuContortion!=bContortion || aNeuFact!=aFact ||
@@ -3301,7 +3301,7 @@ void SdrDragCrook::MoveSdrDrag(const Point& rPnt)
             aCenter=aNeuCenter;
             aFact=aNeuFact;
             aRad=Point(nNeuRad,nNeuRad);
-            bResize=aFact!=Fraction(1,1) && aFact.GetDenominator()!=0 && aFact.IsValid();
+            bResize=aFact!=boost::rational<long>(1,1);
             DragStat().NextMove(aPnt);
             Show();
         }
@@ -3310,14 +3310,14 @@ void SdrDragCrook::MoveSdrDrag(const Point& rPnt)
 
 void SdrDragCrook::applyCurrentTransformationToSdrObject(SdrObject& rTarget)
 {
-    const bool bDoResize(aFact!=Fraction(1,1));
+    const bool bDoResize(aFact!=boost::rational<long>(1,1));
     const bool bDoCrook(aCenter!=aMarkCenter && aRad.X()!=0 && aRad.Y()!=0);
 
     if (bDoCrook || bDoResize)
     {
         if (bDoResize)
         {
-            Fraction aFact1(1,1);
+            boost::rational<long> aFact1(1,1);
 
             if (bContortion)
             {
@@ -3370,7 +3370,7 @@ bool SdrDragCrook::EndSdrDrag(bool bCopy)
 {
     Hide();
 
-    if (bResize && aFact==Fraction(1,1))
+    if (bResize && aFact==boost::rational<long>(1,1))
         bResize=false;
 
     const bool bUndo = getSdrDragView().IsUndoEnabled();
@@ -3392,7 +3392,7 @@ bool SdrDragCrook::EndSdrDrag(bool bCopy)
 
         if (bResize)
         {
-            Fraction aFact1(1,1);
+            boost::rational<long> aFact1(1,1);
 
             if (bContortion)
             {
diff --git a/svx/source/svdraw/svdedtv1.cxx b/svx/source/svdraw/svdedtv1.cxx
index 500633aa3ca1..d0a34a13cf08 100644
--- a/svx/source/svdraw/svdedtv1.cxx
+++ b/svx/source/svdraw/svdedtv1.cxx
@@ -212,7 +212,7 @@ void SdrEditView::MoveMarkedObj(const Size& rSiz, bool bCopy)
         EndUndo();
 }
 
-void SdrEditView::ResizeMarkedObj(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bCopy)
+void SdrEditView::ResizeMarkedObj(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bCopy)
 {
     const bool bUndo = IsUndoEnabled();
     if( bUndo )
@@ -245,8 +245,8 @@ void SdrEditView::ResizeMarkedObj(const Point& rRef, const Fraction& xFact, cons
         EndUndo();
 }
 void SdrEditView::ResizeMultMarkedObj(const Point& rRef,
-    const Fraction& xFact,
-    const Fraction& yFact,
+    const boost::rational<long>& xFact,
+    const boost::rational<long>& yFact,
     const bool bCopy,
     const bool bWdh,
     const bool bHgt)
@@ -276,7 +276,7 @@ void SdrEditView::ResizeMultMarkedObj(const Point& rRef,
             AddUndo( GetModel()->GetSdrUndoFactory().CreateUndoGeoObject(*pO));
         }
 
-        Fraction aFrac(1,1);
+        boost::rational<long> aFrac(1,1);
         if (bWdh && bHgt)
             pO->Resize(rRef, xFact, yFact);
         else if (bWdh)
@@ -755,12 +755,12 @@ void SdrEditView::SetNotPersistAttrToMarked(const SfxItemSet& rAttr, bool /*bRep
         SetMarkedObjRect(aRect);
     }
     if (rAttr.GetItemState(SDRATTR_RESIZEXALL,true,&pPoolItem)==SfxItemState::SET) {
-        Fraction aXFact=((const SdrResizeXAllItem*)pPoolItem)->GetValue();
-        ResizeMarkedObj(aAllSnapRect.TopLeft(),aXFact,Fraction(1,1));
+        boost::rational<long> aXFact=((const SdrResizeXAllItem*)pPoolItem)->GetValue();
+        ResizeMarkedObj(aAllSnapRect.TopLeft(),aXFact,boost::rational<long>(1,1));
     }
     if (rAttr.GetItemState(SDRATTR_RESIZEYALL,true,&pPoolItem)==SfxItemState::SET) {
-        Fraction aYFact=((const SdrResizeYAllItem*)pPoolItem)->GetValue();
-        ResizeMarkedObj(aAllSnapRect.TopLeft(),Fraction(1,1),aYFact);
+        boost::rational<long> aYFact=((const SdrResizeYAllItem*)pPoolItem)->GetValue();
+        ResizeMarkedObj(aAllSnapRect.TopLeft(),boost::rational<long>(1,1),aYFact);
     }
     if (rAttr.GetItemState(SDRATTR_ROTATEALL,true,&pPoolItem)==SfxItemState::SET) {
         long nAngle=((const SdrRotateAllItem*)pPoolItem)->GetValue();
@@ -1608,8 +1608,8 @@ void SdrEditView::SetGeoAttrToMarked(const SfxItemSet& rAttr)
 
     // change size and height
     if (bChgSiz && (bResizeFreeAllowed || bResizePropAllowed)) {
-        Fraction aWdt(nSizX,aRect.Right()-aRect.Left());
-        Fraction aHgt(nSizY,aRect.Bottom()-aRect.Top());
+        boost::rational<long> aWdt(nSizX,aRect.Right()-aRect.Left());
+        boost::rational<long> aHgt(nSizY,aRect.Bottom()-aRect.Top());
         Point aRef(ImpGetPoint(aRect,eSizePoint));
 
         if(GetSdrPageView())
diff --git a/svx/source/svdraw/svdfmtf.cxx b/svx/source/svdraw/svdfmtf.cxx
index c98757922408..5b6a1f4dfcc0 100644
--- a/svx/source/svdraw/svdfmtf.cxx
+++ b/svx/source/svdraw/svdfmtf.cxx
@@ -241,18 +241,18 @@ size_t ImpSdrGDIMetaFileImport::DoImport(
 
     mbMov = maOfs.X()!=0 || maOfs.Y()!=0;
     mbSize = false;
-    maScaleX = Fraction( 1, 1 );
-    maScaleY = Fraction( 1, 1 );
+    maScaleX = boost::rational<long>( 1, 1 );
+    maScaleY = boost::rational<long>( 1, 1 );
 
     if(aMtfSize.Width() != (maScaleRect.GetWidth() - 1))
     {
-        maScaleX = Fraction(maScaleRect.GetWidth() - 1, aMtfSize.Width());
+        maScaleX = boost::rational<long>(maScaleRect.GetWidth() - 1, aMtfSize.Width());
         mbSize = true;
     }
 
     if(aMtfSize.Height() != (maScaleRect.GetHeight() - 1))
     {
-        maScaleY = Fraction(maScaleRect.GetHeight() - 1, aMtfSize.Height());
+        maScaleY = boost::rational<long>(maScaleRect.GetHeight() - 1, aMtfSize.Height());
         mbSize = true;
     }
 
diff --git a/svx/source/svdraw/svdfmtf.hxx b/svx/source/svdraw/svdfmtf.hxx
index 16e2dddcc5ce..d394e97463b3 100644
--- a/svx/source/svdraw/svdfmtf.hxx
+++ b/svx/source/svdraw/svdfmtf.hxx
@@ -63,8 +63,8 @@ protected:
     Point                       maOfs;
     double                      mfScaleX;
     double                      mfScaleY;
-    Fraction                    maScaleX;
-    Fraction                    maScaleY;
+    boost::rational<long>       maScaleX;
+    boost::rational<long>       maScaleY;
 
     bool                        mbFntDirty;
 
diff --git a/svx/source/svdraw/svdglev.cxx b/svx/source/svdraw/svdglev.cxx
index e6947d92b9f5..279c84631190 100644
--- a/svx/source/svdraw/svdglev.cxx
+++ b/svx/source/svdraw/svdglev.cxx
@@ -378,10 +378,10 @@ void SdrGlueEditView::MoveMarkedGluePoints(const Size& rSiz, bool bCopy)
 
 static void ImpResize(Point& rPt, const void* p1, const void* p2, const void* p3, const void* /*p4*/, const void* /*p5*/)
 {
-    ResizePoint(rPt,*(const Point*)p1,*(const Fraction*)p2,*(const Fraction*)p3);
+    ResizePoint(rPt,*(const Point*)p1,*(const boost::rational<long>*)p2,*(const boost::rational<long>*)p3);
 }
 
-void SdrGlueEditView::ResizeMarkedGluePoints(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bCopy)
+void SdrGlueEditView::ResizeMarkedGluePoints(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bCopy)
 {
     ForceUndirtyMrkPnt();
     OUString aStr(ImpGetResStr(STR_EditResize));
diff --git a/svx/source/svdraw/svdibrow.cxx b/svx/source/svdraw/svdibrow.cxx
index e8a03aa36850..be76208d988e 100644
--- a/svx/source/svdraw/svdibrow.cxx
+++ b/svx/source/svdraw/svdibrow.cxx
@@ -1217,7 +1217,7 @@ IMPL_LINK(SdrItemBrowser,ChangedHdl,_SdrItemBrowserControl*,pBrowse)
                 case ITEM_FRACTION: {
                     if (!bPairX) nLongX=1;
                     if (!bPairY) nLongY=1;
-                    ((SdrFractionItem*)pNewItem)->SetValue(Fraction(nLongX,nLongY));
+                    ((SdrFractionItem*)pNewItem)->SetValue(boost::rational<long>(nLongX,nLongY));
                 } break;
                 case ITEM_XCOLOR: break;
                 case ITEM_COLOR: break;
diff --git a/svx/source/svdraw/svdmodel.cxx b/svx/source/svdraw/svdmodel.cxx
index c197fa7f0dd4..e7171b1c3961 100644
--- a/svx/source/svdraw/svdmodel.cxx
+++ b/svx/source/svdraw/svdmodel.cxx
@@ -113,7 +113,7 @@ void SdrModel::ImpCtor(SfxItemPool* pPool, ::comphelper::IEmbeddedHelper* _pEmbe
     aObjUnit=SdrEngineDefaults::GetMapFraction();
     eObjUnit=SdrEngineDefaults::GetMapUnit();
     eUIUnit=FUNIT_MM;
-    aUIScale=Fraction(1,1);
+    aUIScale=boost::rational<long>(1,1);
     nUIUnitKomma=0;
     bUIOnlyKomma=false;
     pLayerAdmin=NULL;
@@ -927,9 +927,9 @@ void SdrModel::SetDefaultTabulator(sal_uInt16 nVal)
 
 void SdrModel::ImpSetUIUnit()
 {
-    if(0 == aUIScale.GetNumerator() || 0 == aUIScale.GetDenominator())
+    if(0 == aUIScale.numerator())
     {
-        aUIScale = Fraction(1,1);
+        aUIScale = boost::rational<long>(1,1);
     }
 
     // set start values
@@ -1015,17 +1015,17 @@ void SdrModel::ImpSetUIUnit()
     // may need to be changed in the future, too
     if(1 != nMul || 1 != nDiv)
     {
-        const Fraction aTemp(static_cast< long >(nMul), static_cast< long >(nDiv));
-        nMul = aTemp.GetNumerator();
-        nDiv = aTemp.GetDenominator();
+        const boost::rational<long> aTemp(static_cast< long >(nMul), static_cast< long >(nDiv));
+        nMul = aTemp.numerator();
+        nDiv = aTemp.denominator();
     }
 
     // #i89872# take Unit of Measurement into account
-    if(1 != aUIScale.GetDenominator() || 1 != aUIScale.GetNumerator())
+    if(1 != aUIScale.denominator() || 1 != aUIScale.numerator())
     {
         // divide by UIScale
-        nMul *= aUIScale.GetDenominator();
-        nDiv *= aUIScale.GetNumerator();
+        nMul *= aUIScale.denominator();
+        nDiv *= aUIScale.numerator();
     }
 
     // shorten trailing zeros for dividend
@@ -1043,12 +1043,12 @@ void SdrModel::ImpSetUIUnit()
     }
 
     // end preparations, set member values
-    aUIUnitFact = Fraction(sal_Int32(nMul), sal_Int32(nDiv));
+    aUIUnitFact = boost::rational<long>(sal_Int32(nMul), sal_Int32(nDiv));
     bUIOnlyKomma = (nMul == nDiv);
     TakeUnitStr(eUIUnit, aUIUnitStr);
 }
 
-void SdrModel::SetScaleUnit(MapUnit eMap, const Fraction& rFrac)
+void SdrModel::SetScaleUnit(MapUnit eMap, const boost::rational<long>& rFrac)
 {
     if (eObjUnit!=eMap || aObjUnit!=rFrac) {
         eObjUnit=eMap;
@@ -1073,7 +1073,7 @@ void SdrModel::SetScaleUnit(MapUnit eMap)
     }
 }
 
-void SdrModel::SetScaleFraction(const Fraction& rFrac)
+void SdrModel::SetScaleFraction(const boost::rational<long>& rFrac)
 {
     if (aObjUnit!=rFrac) {
         aObjUnit=rFrac;
@@ -1093,7 +1093,7 @@ void SdrModel::SetUIUnit(FieldUnit eUnit)
     }
 }
 
-void SdrModel::SetUIScale(const Fraction& rScale)
+void SdrModel::SetUIScale(const boost::rational<long>& rScale)
 {
     if (aUIScale!=rScale) {
         aUIScale=rScale;
@@ -1102,7 +1102,7 @@ void SdrModel::SetUIScale(const Fraction& rScale)
     }
 }
 
-void SdrModel::SetUIUnit(FieldUnit eUnit, const Fraction& rScale)
+void SdrModel::SetUIUnit(FieldUnit eUnit, const boost::rational<long>& rScale)
 {
     if (eUIUnit!=eUnit || aUIScale!=rScale) {
         eUIUnit=eUnit;
@@ -1193,7 +1193,7 @@ void SdrModel::TakeMetricStr(long nVal, OUString& rStr, bool bNoUnitChars, sal_I
     const bool bNegative(nVal < 0L);
     SvtSysLocale aSysLoc;
     const LocaleDataWrapper& rLoc(aSysLoc.GetLocaleData());
-    double fLocalValue(double(nVal) * double(aUIUnitFact));
+    double fLocalValue(double(nVal) * boost::rational_cast<double>(aUIUnitFact));
 
     if(bNegative)
     {
@@ -1333,10 +1333,10 @@ void SdrModel::TakeWinkStr(long nWink, OUString& rStr, bool bNoDegChar) const
     rStr = aBuf.makeStringAndClear();
 }
 
-void SdrModel::TakePercentStr(const Fraction& rVal, OUString& rStr, bool bNoPercentChar) const
+void SdrModel::TakePercentStr(const boost::rational<long>& rVal, OUString& rStr, bool bNoPercentChar) const
 {
-    sal_Int32 nMul(rVal.GetNumerator());
-    sal_Int32 nDiv(rVal.GetDenominator());
+    sal_Int32 nMul(rVal.numerator());
+    sal_Int32 nDiv(rVal.denominator());
     bool bNeg(nMul < 0);
 
     if(nDiv < 0)
diff --git a/svx/source/svdraw/svdoashp.cxx b/svx/source/svdraw/svdoashp.cxx
index 687ed35740e4..858772c5ec14 100644
--- a/svx/source/svdraw/svdoashp.cxx
+++ b/svx/source/svdraw/svdoashp.cxx
@@ -1564,15 +1564,15 @@ void SdrObjCustomShape::NbcMove( const Size& rSiz )
         mpLastShadowGeometry->NbcMove( rSiz );
     }
 }
-void SdrObjCustomShape::Resize( const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bUnsetRelative )
+void SdrObjCustomShape::Resize( const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bUnsetRelative )
 {
     SdrTextObj::Resize( rRef, xFact, yFact, bUnsetRelative );
 }
 
-void SdrObjCustomShape::NbcResize( const Point& rRef, const Fraction& rxFact, const Fraction& ryFact )
+void SdrObjCustomShape::NbcResize( const Point& rRef, const boost::rational<long>& rxFact, const boost::rational<long>& ryFact )
 {
-    Fraction xFact( rxFact );
-    Fraction yFact( ryFact );
+    boost::rational<long> xFact( rxFact );
+    boost::rational<long> yFact( ryFact );
 
     // taking care of handles that should not been changed
     Rectangle aOld( aRect );
@@ -1580,16 +1580,16 @@ void SdrObjCustomShape::NbcResize( const Point& rRef, const Fraction& rxFact, co
 
     SdrTextObj::NbcResize( rRef, xFact, yFact );
 
-    if ( ( xFact.GetNumerator() != xFact.GetDenominator() )
-        || ( yFact.GetNumerator()!= yFact.GetDenominator() ) )
+    if ( ( xFact.numerator() != xFact.denominator() )
+        || ( yFact.numerator()!= yFact.denominator() ) )
     {
-        if ( ( ( xFact.GetNumerator() < 0 ) && ( xFact.GetDenominator() > 0 ) ) ||
-            ( ( xFact.GetNumerator() > 0 ) && ( xFact.GetDenominator() < 0 ) ) )
+        if ( ( ( xFact.numerator() < 0 ) && ( xFact.denominator() > 0 ) ) ||
+            ( ( xFact.numerator() > 0 ) && ( xFact.denominator() < 0 ) ) )
         {
             SetMirroredX( IsMirroredX() == false );
         }
-        if ( ( ( yFact.GetNumerator() < 0 ) && ( yFact.GetDenominator() > 0 ) ) ||
-            ( ( yFact.GetNumerator() > 0 ) && ( yFact.GetDenominator() < 0 ) ) )
+        if ( ( ( yFact.numerator() < 0 ) && ( yFact.denominator() > 0 ) ) ||
+            ( ( yFact.numerator() > 0 ) && ( yFact.denominator() < 0 ) ) )
         {
             SetMirroredY( IsMirroredY() == false );
         }
diff --git a/svx/source/svdraw/svdobj.cxx b/svx/source/svdraw/svdobj.cxx
index a7c12191e318..c98acb0570b6 100644
--- a/svx/source/svdraw/svdobj.cxx
+++ b/svx/source/svdraw/svdobj.cxx
@@ -1338,12 +1338,12 @@ Rectangle SdrObject::ImpDragCalcRect(const SdrDragStat& rDrag) const
         nYMul=std::abs(nYMul);
         nXDiv=std::abs(nXDiv);
         nYDiv=std::abs(nYDiv);
-        Fraction aXFact(nXMul,nXDiv); // fractions for canceling
-        Fraction aYFact(nYMul,nYDiv); // and for comparing
-        nXMul=aXFact.GetNumerator();
-        nYMul=aYFact.GetNumerator();
-        nXDiv=aXFact.GetDenominator();
-        nYDiv=aYFact.GetDenominator();
+        boost::rational<long> aXFact(nXMul,nXDiv); // fractions for canceling
+        boost::rational<long> aYFact(nYMul,nYDiv); // and for comparing
+        nXMul=aXFact.numerator();
+        nYMul=aYFact.numerator();
+        nXDiv=aXFact.denominator();
+        nYDiv=aYFact.denominator();
         if (bEcke) { // corner point handles
             bool bUseX=(aXFact<aYFact) != bBigOrtho;
             if (bUseX) {
@@ -1495,10 +1495,10 @@ void SdrObject::NbcMove(const Size& rSiz)
     SetRectsDirty();
 }
 
-void SdrObject::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrObject::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
-    bool bXMirr=(xFact.GetNumerator()<0) != (xFact.GetDenominator()<0);
-    bool bYMirr=(yFact.GetNumerator()<0) != (yFact.GetDenominator()<0);
+    bool bXMirr = xFact.numerator() < 0;
+    bool bYMirr = yFact.numerator() < 0;
     if (bXMirr || bYMirr) {
         Point aRef1(GetSnapRect().Center());
         if (bXMirr) {
@@ -1593,9 +1593,9 @@ void SdrObject::Move(const Size& rSiz)
     }
 }
 
-void SdrObject::Resize(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bUnsetRelative)
+void SdrObject::Resize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bUnsetRelative)
 {
-    if (xFact.GetNumerator()!=xFact.GetDenominator() || yFact.GetNumerator()!=yFact.GetDenominator()) {
+    if (xFact.numerator()!=xFact.denominator() || yFact.numerator()!=yFact.denominator()) {
         if (bUnsetRelative)
         {
             mnRelativeWidth.reset( );
@@ -2262,15 +2262,15 @@ void SdrObject::NbcApplyNotPersistAttr(const SfxItemSet& rAttr)
     if (aNewLogic!=rLogic) {
         NbcSetLogicRect(aNewLogic);
     }
-    Fraction aResizeX(1,1);
-    Fraction aResizeY(1,1);
+    boost::rational<long> aResizeX(1,1);
+    boost::rational<long> aResizeY(1,1);
     if (rAttr.GetItemState(SDRATTR_RESIZEXONE,true,&pPoolItem)==SfxItemState::SET) {
         aResizeX*=((const SdrResizeXOneItem*)pPoolItem)->GetValue();
     }
     if (rAttr.GetItemState(SDRATTR_RESIZEYONE,true,&pPoolItem)==SfxItemState::SET) {
         aResizeY*=((const SdrResizeYOneItem*)pPoolItem)->GetValue();
     }
-    if (aResizeX!=Fraction(1,1) || aResizeY!=Fraction(1,1)) {
+    if (aResizeX!=boost::rational<long>(1,1) || aResizeY!=boost::rational<long>(1,1)) {
         NbcResize(aRef1,aResizeX,aResizeY);
     }
 }
diff --git a/svx/source/svdraw/svdocapt.cxx b/svx/source/svdraw/svdocapt.cxx
index 583222a1cab2..85f7502f9d33 100644
--- a/svx/source/svdraw/svdocapt.cxx
+++ b/svx/source/svdraw/svdocapt.cxx
@@ -608,7 +608,7 @@ void SdrCaptionObj::NbcMove(const Size& rSiz)
         SetTailPos(GetFixedTailPos());
 }
 
-void SdrCaptionObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrCaptionObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     SdrRectObj::NbcResize(rRef,xFact,yFact);
     ResizePoly(aTailPoly,rRef,xFact,yFact);
diff --git a/svx/source/svdraw/svdocirc.cxx b/svx/source/svdraw/svdocirc.cxx
index db836dd721e0..81a9c413a95b 100644
--- a/svx/source/svdraw/svdocirc.cxx
+++ b/svx/source/svdraw/svdocirc.cxx
@@ -811,15 +811,15 @@ void SdrCircObj::NbcMove(const Size& aSiz)
     SetRectsDirty(true);
 }
 
-void SdrCircObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrCircObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     long nWink0=aGeo.nDrehWink;
     bool bNoShearRota=(aGeo.nDrehWink==0 && aGeo.nShearWink==0);
     SdrTextObj::NbcResize(rRef,xFact,yFact);
     bNoShearRota|=(aGeo.nDrehWink==0 && aGeo.nShearWink==0);
     if (meCircleKind!=OBJ_CIRC) {
-        bool bXMirr=(xFact.GetNumerator()<0) != (xFact.GetDenominator()<0);
-        bool bYMirr=(yFact.GetNumerator()<0) != (yFact.GetDenominator()<0);
+        bool bXMirr = xFact.numerator() < 0;
+        bool bYMirr = yFact.numerator() < 0;
         if (bXMirr || bYMirr) {
             // At bXMirr!=bYMirr we should actually swap both line ends.
             // That, however, is pretty bad (because of forced "hard" formatting).
@@ -1031,7 +1031,7 @@ void SdrCircObj::NbcSetSnapRect(const Rectangle& rRect)
         long nHgt0=aSR0.Bottom()-aSR0.Top();
         long nWdt1=rRect.Right()-rRect.Left();
         long nHgt1=rRect.Bottom()-rRect.Top();
-        NbcResize(maSnapRect.TopLeft(),Fraction(nWdt1,nWdt0),Fraction(nHgt1,nHgt0));
+        NbcResize(maSnapRect.TopLeft(),boost::rational<long>(nWdt1,nWdt0),boost::rational<long>(nHgt1,nHgt0));
         NbcMove(Size(rRect.Left()-aSR0.Left(),rRect.Top()-aSR0.Top()));
     } else {
         aRect=rRect;
diff --git a/svx/source/svdraw/svdoedge.cxx b/svx/source/svdraw/svdoedge.cxx
index a743cc3ce901..c73a6d167f73 100644
--- a/svx/source/svdraw/svdoedge.cxx
+++ b/svx/source/svdraw/svdoedge.cxx
@@ -2244,8 +2244,8 @@ void SdrEdgeObj::NbcSetSnapRect(const Rectangle& rRect)
             long nDivY = aOld.Bottom()  - aOld.Top();
             if ( nDivX == 0 ) { nMulX = 1; nDivX = 1; }
             if ( nDivY == 0 ) { nMulY = 1; nDivY = 1; }
-            Fraction aX(nMulX, nDivX);
-            Fraction aY(nMulY, nDivY);
+            boost::rational<long> aX(nMulX, nDivX);
+            boost::rational<long> aY(nMulY, nDivY);
             NbcResize(aOld.TopLeft(), aX, aY);
             NbcMove(Size(rRect.Left() - aOld.Left(), rRect.Top() - aOld.Top()));
         }
@@ -2258,7 +2258,7 @@ void SdrEdgeObj::NbcMove(const Size& rSiz)
     MoveXPoly(*pEdgeTrack,rSiz);
 }
 
-void SdrEdgeObj::NbcResize(const Point& rRefPnt, const Fraction& aXFact, const Fraction& aYFact)
+void SdrEdgeObj::NbcResize(const Point& rRefPnt, const boost::rational<long>& aXFact, const boost::rational<long>& aYFact)
 {
     SdrTextObj::NbcResize(rRefPnt,aXFact,aXFact);
     ResizeXPoly(*pEdgeTrack,rRefPnt,aXFact,aYFact);
diff --git a/svx/source/svdraw/svdograf.cxx b/svx/source/svdraw/svdograf.cxx
index 8c6a4892435b..b101d0311bff 100644
--- a/svx/source/svdraw/svdograf.cxx
+++ b/svx/source/svdraw/svdograf.cxx
@@ -897,12 +897,12 @@ SdrHdl* SdrGrafObj::GetHdl(sal_uInt32 nHdlNum) const
     return SdrRectObj::GetHdl( nHdlNum + 1L );
 }
 
-void SdrGrafObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrGrafObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     SdrRectObj::NbcResize( rRef, xFact, yFact );
 
-    bool bMirrX = xFact.GetNumerator() < 0;
-    bool bMirrY = yFact.GetNumerator() < 0;
+    bool bMirrX = xFact.numerator() < 0;
+    bool bMirrY = yFact.numerator() < 0;
 
     if( bMirrX != bMirrY )
         bMirrored = !bMirrored;
diff --git a/svx/source/svdraw/svdogrp.cxx b/svx/source/svdraw/svdogrp.cxx
index 87634138df20..dd79cc445854 100644
--- a/svx/source/svdraw/svdogrp.cxx
+++ b/svx/source/svdraw/svdogrp.cxx
@@ -403,8 +403,8 @@ void SdrObjGroup::NbcSetSnapRect(const Rectangle& rRect)
     if (nDivX==0) { nMulX=1; nDivX=1; }
     if (nDivY==0) { nMulY=1; nDivY=1; }
     if (nMulX!=nDivX || nMulY!=nDivY) {
-        Fraction aX(nMulX,nDivX);
-        Fraction aY(nMulY,nDivY);
+        boost::rational<long> aX(nMulX,nDivX);
+        boost::rational<long> aY(nMulY,nDivY);
         NbcResize(aOld.TopLeft(),aX,aY);
     }
     if (rRect.Left()!=aOld.Left() || rRect.Top()!=aOld.Top()) {
@@ -436,10 +436,10 @@ void SdrObjGroup::NbcMove(const Size& rSiz)
 }
 
 
-void SdrObjGroup::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrObjGroup::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
-    bool bXMirr=(xFact.GetNumerator()<0) != (xFact.GetDenominator()<0);
-    bool bYMirr=(yFact.GetNumerator()<0) != (yFact.GetDenominator()<0);
+    bool bXMirr = xFact.numerator() < 0;
+    bool bYMirr = yFact.numerator() < 0;
     if (bXMirr || bYMirr) {
         Point aRef1(GetSnapRect().Center());
         if (bXMirr) {
@@ -538,8 +538,8 @@ void SdrObjGroup::SetSnapRect(const Rectangle& rRect)
     if (nDivX==0) { nMulX=1; nDivX=1; }
     if (nDivY==0) { nMulY=1; nDivY=1; }
     if (nMulX!=nDivX || nMulY!=nDivY) {
-        Fraction aX(nMulX,nDivX);
-        Fraction aY(nMulY,nDivY);
+        boost::rational<long> aX(nMulX,nDivX);
+        boost::rational<long> aY(nMulY,nDivY);
         Resize(aOld.TopLeft(),aX,aY);
     }
     if (rRect.Left()!=aOld.Left() || rRect.Top()!=aOld.Top()) {
@@ -587,11 +587,11 @@ void SdrObjGroup::Move(const Size& rSiz)
 }
 
 
-void SdrObjGroup::Resize(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bUnsetRelative)
+void SdrObjGroup::Resize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bUnsetRelative)
 {
-    if (xFact.GetNumerator()!=xFact.GetDenominator() || yFact.GetNumerator()!=yFact.GetDenominator()) {
-        bool bXMirr=(xFact.GetNumerator()<0) != (xFact.GetDenominator()<0);
-        bool bYMirr=(yFact.GetNumerator()<0) != (yFact.GetDenominator()<0);
+    if (xFact.numerator()!=xFact.denominator() || yFact.numerator()!=yFact.denominator()) {
+        bool bXMirr = xFact.numerator() < 0;
+        bool bYMirr = yFact.numerator() < 0;
         if (bXMirr || bYMirr) {
             Point aRef1(GetSnapRect().Center());
             if (bXMirr) {
diff --git a/svx/source/svdraw/svdomeas.cxx b/svx/source/svdraw/svdomeas.cxx
index 007c97350afa..dd3998b21d72 100644
--- a/svx/source/svdraw/svdomeas.cxx
+++ b/svx/source/svdraw/svdomeas.cxx
@@ -80,7 +80,7 @@ SdrMeasureObjGeoData::~SdrMeasureObjGeoData() {}
 OUString SdrMeasureObj::TakeRepresentation(SdrMeasureFieldKind eMeasureFieldKind) const
 {
     OUString aStr;
-    Fraction aMeasureScale(1, 1);
+    boost::rational<long> aMeasureScale(1, 1);
     bool bTextRota90(false);
     bool bShowUnit(false);
     FieldUnit eMeasureUnit(FUNIT_NONE);
@@ -105,7 +105,7 @@ OUString SdrMeasureObj::TakeRepresentation(SdrMeasureFieldKind eMeasureFieldKind
                     eMeasureUnit = eModUIUnit;
 
                 sal_Int32 nLen(GetLen(aPt2 - aPt1));
-                Fraction aFact(1,1);
+                boost::rational<long> aFact(1,1);
 
                 if(eMeasureUnit != eModUIUnit)
                 {
@@ -113,27 +113,21 @@ OUString SdrMeasureObj::TakeRepresentation(SdrMeasureFieldKind eMeasureFieldKind
                     aFact *= GetMapFactor(eModUIUnit, eMeasureUnit).X();
                 }
 
-                if(aMeasureScale.GetNumerator() != aMeasureScale.GetDenominator())
+                if(aMeasureScale.numerator() != aMeasureScale.denominator())
                 {
                     aFact *= aMeasureScale;
                 }
 
-                if(aFact.GetNumerator() != aFact.GetDenominator())
+                if(aFact.numerator() != aFact.denominator())
                 {
                     // scale via BigInt, to avoid overruns
-                    nLen = BigMulDiv(nLen, aFact.GetNumerator(), aFact.GetDenominator());
+                    nLen = BigMulDiv(nLen, aFact.numerator(), aFact.denominator());
                 }
 
                 OUString aTmp;
                 pModel->TakeMetricStr(nLen, aTmp, true, nNumDigits);
                 aStr = aTmp;
 
-                if(!aFact.IsValid())
-                {
-                    aStr = "";
-                    aStr += "?";
-                }
-
                 sal_Unicode cDec(SvtSysLocale().GetLocaleData().getNumDecimalSep()[0]);
 
                 if(aStr.indexOf(cDec) != -1)
@@ -281,7 +275,7 @@ struct ImpMeasureRec : public SdrDragStatUserData
     bool                        bTextUpsideDown;
     long                        nMeasureOverhang;
     FieldUnit                   eMeasureUnit;
-    Fraction                    aMeasureScale;
+    boost::rational<long>       aMeasureScale;
     bool                        bShowUnit;
     OUString                    aFormatString;
     bool                        bTextAutoAngle;
@@ -1035,7 +1029,7 @@ void SdrMeasureObj::NbcMove(const Size& rSiz)
     MovePoint(aPt2,rSiz);
 }
 
-void SdrMeasureObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrMeasureObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     SdrTextObj::NbcResize(rRef,xFact,yFact);
     ResizePoint(aPt1,rRef,xFact,yFact);
diff --git a/svx/source/svdraw/svdoole2.cxx b/svx/source/svdraw/svdoole2.cxx
index df431560a8d2..cb9dd89ffc04 100644
--- a/svx/source/svdraw/svdoole2.cxx
+++ b/svx/source/svdraw/svdoole2.cxx
@@ -114,22 +114,22 @@ class SdrLightEmbeddedClient_Impl : public ::cppu::WeakImplHelper5
     uno::Reference< awt::XWindow > m_xWindow;
     SdrOle2Obj* mpObj;
 
-    Fraction m_aScaleWidth;
-    Fraction m_aScaleHeight;
+    boost::rational<long> m_aScaleWidth;
+    boost::rational<long> m_aScaleHeight;
 
 
 public:
     SdrLightEmbeddedClient_Impl( SdrOle2Obj* pObj );
     void Release();
 
-    void SetSizeScale( const Fraction& aScaleWidth, const Fraction& aScaleHeight )
+    void SetSizeScale( const boost::rational<long>& aScaleWidth, const boost::rational<long>& aScaleHeight )
     {
         m_aScaleWidth = aScaleWidth;
         m_aScaleHeight = aScaleHeight;
     }
 
-    Fraction GetScaleWidth() const { return m_aScaleWidth; }
-    Fraction GetScaleHeight() const { return m_aScaleHeight; }
+    boost::rational<long> GetScaleWidth() const { return m_aScaleWidth; }
+    boost::rational<long> GetScaleHeight() const { return m_aScaleHeight; }
 
     void setWindow(const uno::Reference< awt::XWindow >& _xWindow);
 
@@ -177,8 +177,8 @@ Rectangle SdrLightEmbeddedClient_Impl::impl_getScaledRect_nothrow() const
 {
     Rectangle aLogicRect( mpObj->GetLogicRect() );
     // apply scaling to object area and convert to pixels
-    aLogicRect.SetSize( Size( Fraction( aLogicRect.GetWidth() ) * m_aScaleWidth,
-                                Fraction( aLogicRect.GetHeight() ) * m_aScaleHeight ) );
+    aLogicRect.SetSize( Size( boost::rational_cast<long>(aLogicRect.GetWidth() * m_aScaleWidth),
+                                boost::rational_cast<long>(aLogicRect.GetHeight() * m_aScaleHeight) ) );
     return aLogicRect;
 }
 
@@ -262,8 +262,8 @@ void SAL_CALL SdrLightEmbeddedClient_Impl::notifyEvent( const document::EventObj
 
             aVisArea.SetSize( Size( aSz.Width, aSz.Height ) );
             aVisArea = OutputDevice::LogicToLogic( aVisArea, aObjMapUnit, aContainerMapUnit );
-            Size aScaledSize( static_cast< long >( m_aScaleWidth * Fraction( aVisArea.GetWidth() ) ),
-                                static_cast< long >( m_aScaleHeight * Fraction( aVisArea.GetHeight() ) ) );
+            Size aScaledSize( boost::rational_cast<long>( m_aScaleWidth * aVisArea.GetWidth() ),
+                                boost::rational_cast<long>( m_aScaleHeight * aVisArea.GetHeight() ) );
             Rectangle aLogicRect( mpObj->GetLogicRect() );
 
             // react to the change if the difference is bigger than one pixel
@@ -548,8 +548,8 @@ void SAL_CALL SdrLightEmbeddedClient_Impl::changedPlacement( const awt::Rectangl
         //SfxBooleanFlagGuard aGuard( m_bResizeNoScale, true );
 
         // new size of the object area without scaling
-        Size aNewObjSize( Fraction( aNewLogicRect.GetWidth() ) / m_aScaleWidth,
-                          Fraction( aNewLogicRect.GetHeight() ) / m_aScaleHeight );
+        Size aNewObjSize( boost::rational_cast<long>(aNewLogicRect.GetWidth() / m_aScaleWidth),
+                          boost::rational_cast<long>(aNewLogicRect.GetHeight() / m_aScaleHeight) );
 
         // now remove scaling from new placement and keep this a the new object area
         aNewLogicRect.SetSize( aNewObjSize );
@@ -1762,8 +1762,8 @@ void SdrOle2Obj::ImpSetVisAreaSize()
                     || mpImpl->mxObjRef->getCurrentState() == embed::EmbedStates::INPLACE_ACTIVE
                     )
             {
-                Fraction aScaleWidth;
-                Fraction aScaleHeight;
+                boost::rational<long> aScaleWidth;
+                boost::rational<long> aScaleHeight;
                 if ( pClient )
                 {
                     aScaleWidth = pClient->GetScaleWidth();
@@ -1781,8 +1781,8 @@ void SdrOle2Obj::ImpSetVisAreaSize()
                 // objects' visual area. The scaling will not change, but it might exist already and must
                 // be used in calculations
                 MapUnit aMapUnit = VCLUnoHelper::UnoEmbed2VCLMapUnit( mpImpl->mxObjRef->getMapUnit( GetAspect() ) );
-                Size aVisSize( (long)( Fraction( aRect.GetWidth() ) / aScaleWidth ),
-                                (long)( Fraction( aRect.GetHeight() ) / aScaleHeight ) );
+                Size aVisSize( boost::rational_cast<long>(aRect.GetWidth() / aScaleWidth),
+                                boost::rational_cast<long>(aRect.GetHeight() / aScaleHeight) );
 
                 aVisSize = OutputDevice::LogicToLogic( aVisSize, pModel->GetScaleUnit(), aMapUnit);
                 awt::Size aSz;
@@ -1798,8 +1798,8 @@ void SdrOle2Obj::ImpSetVisAreaSize()
                 {}
 
                 Rectangle aAcceptedVisArea;
-                aAcceptedVisArea.SetSize( Size( (long)( Fraction( long( aSz.Width ) ) * aScaleWidth ),
-                                                (long)( Fraction( long( aSz.Height ) ) * aScaleHeight ) ) );
+                aAcceptedVisArea.SetSize( Size( boost::rational_cast<long>(long(aSz.Width) * aScaleWidth),
+                                                boost::rational_cast<long>(long(aSz.Height) * aScaleHeight) ) );
                 if (aVisSize != aAcceptedVisArea.GetSize())
                 {
                     // server changed VisArea to its liking and the VisArea is different than the suggested one
@@ -1826,8 +1826,8 @@ void SdrOle2Obj::ImpSetVisAreaSize()
             {
                 // The object isn't active and does not want to resize itself so the changed object area size
                 // will be reflected in a changed object scaling
-                Fraction aScaleWidth;
-                Fraction aScaleHeight;
+                boost::rational<long> aScaleWidth;
+                boost::rational<long> aScaleHeight;
                 Size aObjAreaSize;
                 if ( CalculateNewScaling( aScaleWidth, aScaleHeight, aObjAreaSize ) )
                 {
@@ -1865,7 +1865,7 @@ void SdrOle2Obj::ImpSetVisAreaSize()
 
 
 
-void SdrOle2Obj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrOle2Obj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     if( pModel && !pModel->isLocked() )
     {
@@ -2211,7 +2211,7 @@ uno::Reference< frame::XModel > SdrOle2Obj::GetParentXModel() const
 }
 
 
-bool SdrOle2Obj::CalculateNewScaling( Fraction& aScaleWidth, Fraction& aScaleHeight, Size& aObjAreaSize )
+bool SdrOle2Obj::CalculateNewScaling( boost::rational<long>& aScaleWidth, boost::rational<long>& aScaleHeight, Size& aObjAreaSize )
 {
     // TODO/LEAN: to avoid rounding errors scaling always uses the VisArea.
     // If we don't cache it for own objects also we must load the object here
@@ -2222,8 +2222,8 @@ bool SdrOle2Obj::CalculateNewScaling( Fraction& aScaleWidth, Fraction& aScaleHei
     aObjAreaSize = mpImpl->mxObjRef.GetSize( &aMapMode );
 
     Size aSize = aRect.GetSize();
-    aScaleWidth = Fraction(aSize.Width(),  aObjAreaSize.Width() );
-    aScaleHeight = Fraction(aSize.Height(), aObjAreaSize.Height() );
+    aScaleWidth = boost::rational<long>(aSize.Width(),  aObjAreaSize.Width() );
+    aScaleHeight = boost::rational<long>(aSize.Height(), aObjAreaSize.Height() );
 
     // reduce to 10 binary digits
     Kuerzen(aScaleHeight, 10);
@@ -2243,8 +2243,8 @@ bool SdrOle2Obj::AddOwnLightClient()
 
         if ( mpImpl->mxObjRef.is() && mpImpl->pLightClient )
         {
-            Fraction aScaleWidth;
-            Fraction aScaleHeight;
+            boost::rational<long> aScaleWidth;
+            boost::rational<long> aScaleHeight;
             Size aObjAreaSize;
             if ( CalculateNewScaling( aScaleWidth, aScaleHeight, aObjAreaSize ) )
             {
diff --git a/svx/source/svdraw/svdoopengl.cxx b/svx/source/svdraw/svdoopengl.cxx
index 1b3398359c83..b1e8e8f0e945 100644
--- a/svx/source/svdraw/svdoopengl.cxx
+++ b/svx/source/svdraw/svdoopengl.cxx
@@ -35,7 +35,7 @@ sdr::contact::ViewContact* SdrOpenGLObj::CreateObjectSpecificViewContact()
 }
 
 
-void SdrOpenGLObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrOpenGLObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     SdrObject::NbcResize(rRef, xFact, yFact);
 
diff --git a/svx/source/svdraw/svdopath.cxx b/svx/source/svdraw/svdopath.cxx
index 702493ea69c9..7a20ab068ce2 100644
--- a/svx/source/svdraw/svdopath.cxx
+++ b/svx/source/svdraw/svdopath.cxx
@@ -2352,11 +2352,11 @@ void SdrPathObj::NbcMove(const Size& rSiz)
     SdrTextObj::NbcMove(rSiz);
 }
 
-void SdrPathObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrPathObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     basegfx::B2DHomMatrix aTrans(basegfx::tools::createTranslateB2DHomMatrix(-rRef.X(), -rRef.Y()));
     aTrans = basegfx::tools::createScaleTranslateB2DHomMatrix(
-        double(xFact), double(yFact), rRef.X(), rRef.Y()) * aTrans;
+        boost::rational_cast<double>(xFact), boost::rational_cast<double>(yFact), rRef.X(), rRef.Y()) * aTrans;
     maPathPolygon.transform(aTrans);
 
     // #i19871# first modify locally, then call parent (to get correct SnapRect with GluePoints)
@@ -2454,8 +2454,8 @@ void SdrPathObj::NbcSetSnapRect(const Rectangle& rRect)
     long nDivY = aOld.Bottom()  - aOld.Top();
     if ( nDivX == 0 ) { nMulX = 1; nDivX = 1; }
     if ( nDivY == 0 ) { nMulY = 1; nDivY = 1; }
-    Fraction aX(nMulX,nDivX);
-    Fraction aY(nMulY,nDivY);
+    boost::rational<long> aX(nMulX,nDivX);
+    boost::rational<long> aY(nMulY,nDivY);
     NbcResize(aOld.TopLeft(), aX, aY);
     NbcMove(Size(rRect.Left() - aOld.Left(), rRect.Top() - aOld.Top()));
 }
diff --git a/svx/source/svdraw/svdorect.cxx b/svx/source/svdraw/svdorect.cxx
index 387f57910cde..75385b40e995 100644
--- a/svx/source/svdraw/svdorect.cxx
+++ b/svx/source/svdraw/svdorect.cxx
@@ -494,7 +494,7 @@ void SdrRectObj::NbcMove(const Size& rSiz)
     SetXPolyDirty();
 }
 
-void SdrRectObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrRectObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     SdrTextObj::NbcResize(rRef,xFact,yFact);
     SetXPolyDirty();
diff --git a/svx/source/svdraw/svdotext.cxx b/svx/source/svdraw/svdotext.cxx
index 011418d57844..bdf85d0e5c69 100644
--- a/svx/source/svdraw/svdotext.cxx
+++ b/svx/source/svdraw/svdotext.cxx
@@ -871,7 +871,7 @@ OutlinerParaObject* SdrTextObj::GetEditOutlinerParaObject() const
     return pPara;
 }
 
-void SdrTextObj::ImpSetCharStretching(SdrOutliner& rOutliner, const Size& rTextSize, const Size& rShapeSize, Fraction& rFitXKorreg) const
+void SdrTextObj::ImpSetCharStretching(SdrOutliner& rOutliner, const Size& rTextSize, const Size& rShapeSize, boost::rational<long>& rFitXKorreg) const
 {
     OutputDevice* pOut = rOutliner.GetRefDevice();
     bool bNoStretching(false);
@@ -963,7 +963,7 @@ void SdrTextObj::ImpSetCharStretching(SdrOutliner& rOutliner, const Size& rTextS
         nLoopCount++;
         Size aSiz(rOutliner.CalcTextSize());
         long nXDiff=aSiz.Width()-nWantWdt;
-        rFitXKorreg=Fraction(nWantWdt,aSiz.Width());
+        rFitXKorreg=boost::rational<long>(nWantWdt,aSiz.Width());
         if (((nXDiff>=nXTolMi || !bChkX) && nXDiff<=nXTolPl) || nXDiff==nXDiff0) {
             bNoMoreLoop = true;
         } else {
@@ -1245,7 +1245,7 @@ void SdrTextObj::ImpSetupDrawOutlinerForPaint( bool             bContourFrame,
                                                Rectangle&       rTextRect,
                                                Rectangle&       rAnchorRect,
                                                Rectangle&       rPaintRect,
-                                               Fraction&        rFitXKorreg ) const
+                                               boost::rational<long>&        rFitXKorreg ) const
 {
     if (!bContourFrame)
     {
@@ -1349,7 +1349,7 @@ void SdrTextObj::UpdateOutlinerFormatting( SdrOutliner& rOutl, Rectangle& rPaint
 {
     Rectangle aTextRect;
     Rectangle aAnchorRect;
-    Fraction aFitXKorreg(1,1);
+    boost::rational<long> aFitXKorreg(1,1);
 
     bool bContourFrame=IsContourTextFrame();
 
@@ -1837,7 +1837,7 @@ GDIMetaFile* SdrTextObj::GetTextScrollMetaFileAndRectangle(
     Rectangle aTextRect;
     Rectangle aAnchorRect;
     Rectangle aPaintRect;
-    Fraction aFitXKorreg(1,1);
+    boost::rational<long> aFitXKorreg(1,1);
     bool bContourFrame(IsContourTextFrame());
 
     // get outliner set up. To avoid getting a somehow rotated MetaFile,
diff --git a/svx/source/svdraw/svdotxdr.cxx b/svx/source/svdraw/svdotxdr.cxx
index dd00cee48de7..d7d563157c8d 100644
--- a/svx/source/svdraw/svdotxdr.cxx
+++ b/svx/source/svdraw/svdotxdr.cxx
@@ -104,12 +104,12 @@ Rectangle SdrTextObj::ImpDragCalcRect(const SdrDragStat& rDrag) const
         nYMul=std::abs(nYMul);
         nXDiv=std::abs(nXDiv);
         nYDiv=std::abs(nYDiv);
-        Fraction aXFact(nXMul,nXDiv); // fractions for canceling
-        Fraction aYFact(nYMul,nYDiv); // and for comparing
-        nXMul=aXFact.GetNumerator();
-        nYMul=aYFact.GetNumerator();
-        nXDiv=aXFact.GetDenominator();
-        nYDiv=aYFact.GetDenominator();
+        boost::rational<long> aXFact(nXMul,nXDiv); // fractions for canceling
+        boost::rational<long> aYFact(nYMul,nYDiv); // and for comparing
+        nXMul=aXFact.numerator();
+        nYMul=aYFact.numerator();
+        nXDiv=aXFact.denominator();
+        nYDiv=aYFact.denominator();
         if (bEcke) { // corner point handles
             bool bUseX=(aXFact<aYFact) != bBigOrtho;
             if (bUseX) {
diff --git a/svx/source/svdraw/svdotxed.cxx b/svx/source/svdraw/svdotxed.cxx
index 4c7754ed074d..1f5693854f57 100644
--- a/svx/source/svdraw/svdotxed.cxx
+++ b/svx/source/svdraw/svdotxed.cxx
@@ -95,7 +95,7 @@ bool SdrTextObj::BegTextEdit(SdrOutliner& rOutl)
         Rectangle aTextRect;
         TakeTextRect(rOutl, aTextRect, false,
             &aAnchorRect);
-        Fraction aFitXKorreg(1,1);
+        boost::rational<long> aFitXKorreg(1,1);
         ImpSetCharStretching(rOutl,aTextRect.GetSize(),aAnchorRect.GetSize(),aFitXKorreg);
     }
     else if (IsAutoFit())
diff --git a/svx/source/svdraw/svdotxtr.cxx b/svx/source/svdraw/svdotxtr.cxx
index e4da47df32eb..b627d591fbed 100644
--- a/svx/source/svdraw/svdotxtr.cxx
+++ b/svx/source/svdraw/svdotxtr.cxx
@@ -48,7 +48,7 @@ void SdrTextObj::NbcSetSnapRect(const Rectangle& rRect)
         long nHgt0=aSR0.Bottom()-aSR0.Top();
         long nWdt1=rRect.Right()-rRect.Left();
         long nHgt1=rRect.Bottom()-rRect.Top();
-        SdrTextObj::NbcResize(maSnapRect.TopLeft(),Fraction(nWdt1,nWdt0),Fraction(nHgt1,nHgt0));
+        SdrTextObj::NbcResize(maSnapRect.TopLeft(),boost::rational<long>(nWdt1,nWdt0),boost::rational<long>(nHgt1,nHgt0));
         SdrTextObj::NbcMove(Size(rRect.Left()-aSR0.Left(),rRect.Top()-aSR0.Top()));
     } else {
         long nHDist=GetTextLeftDistance()+GetTextRightDistance();
@@ -118,7 +118,7 @@ void SdrTextObj::NbcMove(const Size& rSiz)
     SetRectsDirty(true);
 }
 
-void SdrTextObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrTextObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     bool bNoShearMerk=aGeo.nShearWink==0;
     bool bRota90Merk=bNoShearMerk && aGeo.nDrehWink % 9000 ==0;
@@ -126,8 +126,8 @@ void SdrTextObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fract
     long nVDist=GetTextUpperDistance()+GetTextLowerDistance();
     long nTWdt0=aRect.GetWidth ()-1-nHDist; if (nTWdt0<0) nTWdt0=0;
     long nTHgt0=aRect.GetHeight()-1-nVDist; if (nTHgt0<0) nTHgt0=0;
-    bool bXMirr=(xFact.GetNumerator()<0) != (xFact.GetDenominator()<0);
-    bool bYMirr=(yFact.GetNumerator()<0) != (yFact.GetDenominator()<0);
+    bool bXMirr = xFact.numerator() < 0;
+    bool bYMirr = yFact.numerator() < 0;
     if (bXMirr || bYMirr) {
         Point aRef1(GetSnapRect().Center());
         if (bXMirr) {
diff --git a/svx/source/svdraw/svdouno.cxx b/svx/source/svdraw/svdouno.cxx
index 3c5f21ede3c0..eceb1f3f9844 100644
--- a/svx/source/svdraw/svdouno.cxx
+++ b/svx/source/svdraw/svdouno.cxx
@@ -320,7 +320,7 @@ SdrUnoObj& SdrUnoObj::operator= (const SdrUnoObj& rObj)
     return *this;
 }
 
-void SdrUnoObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrUnoObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     SdrRectObj::NbcResize(rRef,xFact,yFact);
 
diff --git a/svx/source/svdraw/svdovirt.cxx b/svx/source/svdraw/svdovirt.cxx
index 122e8a59477c..ae99c80b2e5c 100644
--- a/svx/source/svdraw/svdovirt.cxx
+++ b/svx/source/svdraw/svdovirt.cxx
@@ -355,7 +355,7 @@ void SdrVirtObj::NbcMove(const Size& rSiz)
     SetRectsDirty();
 }
 
-void SdrVirtObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrVirtObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     rRefObj.NbcResize(rRef-aAnchor,xFact,yFact);
     SetRectsDirty();
@@ -392,9 +392,9 @@ void SdrVirtObj::Move(const Size& rSiz)
     }
 }
 
-void SdrVirtObj::Resize(const Point& rRef, const Fraction& xFact, const Fraction& yFact, bool bUnsetRelative)
+void SdrVirtObj::Resize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact, bool bUnsetRelative)
 {
-    if (xFact.GetNumerator()!=xFact.GetDenominator() || yFact.GetNumerator()!=yFact.GetDenominator()) {
+    if (xFact.numerator()!=xFact.denominator() || yFact.numerator()!=yFact.denominator()) {
         Rectangle aBoundRect0; if (pUserCall!=NULL) aBoundRect0=GetLastBoundRect();
         rRefObj.Resize(rRef-aAnchor,xFact,yFact, bUnsetRelative);
         SetRectsDirty();
diff --git a/svx/source/svdraw/svdpntv.cxx b/svx/source/svdraw/svdpntv.cxx
index 4eb1b6d1981c..e7a713ec74f5 100644
--- a/svx/source/svdraw/svdpntv.cxx
+++ b/svx/source/svdraw/svdpntv.cxx
@@ -1149,11 +1149,11 @@ void SdrPaintView::MakeVisible(const Rectangle& rRect, vcl::Window& rWin)
         {
             bNewScale=true;
             // set new MapMode (Size+Org) and invalidate everything
-            Fraction aXFact(aNewSize.Width(),aActualSize.Width());
-            Fraction aYFact(aNewSize.Height(),aActualSize.Height());
+            boost::rational<long> aXFact(aNewSize.Width(),aActualSize.Width());
+            boost::rational<long> aYFact(aNewSize.Height(),aActualSize.Height());
             if (aYFact>aXFact) aXFact=aYFact;
             aXFact*=aMap.GetScaleX();
-            aXFact.ReduceInaccurate(10); // to avoid runovers and BigInt mapping
+            rational_ReduceInaccurate(aXFact, 10); // to avoid runovers and BigInt mapping
             aMap.SetScaleX(aXFact);
             aMap.SetScaleY(aYFact);
             rWin.SetMapMode(aMap);
diff --git a/svx/source/svdraw/svdpoev.cxx b/svx/source/svdraw/svdpoev.cxx
index 2d9394db6b2c..8ee050116a7c 100644
--- a/svx/source/svdraw/svdpoev.cxx
+++ b/svx/source/svdraw/svdpoev.cxx
@@ -672,12 +672,12 @@ void SdrPolyEditView::MoveMarkedPoints(const Size& rSiz)
 
 static void ImpResize(Point& rPt, Point* pC1, Point* pC2, const void* p1, const void* p2, const void* p3, const void* /*p4*/, const void* /*p5*/)
 {
-    ResizePoint(rPt,*(const Point*)p1,*(const Fraction*)p2,*(const Fraction*)p3);
-    if (pC1!=NULL) ResizePoint(*pC1,*(const Point*)p1,*(const Fraction*)p2,*(const Fraction*)p3);
-    if (pC2!=NULL) ResizePoint(*pC2,*(const Point*)p1,*(const Fraction*)p2,*(const Fraction*)p3);
+    ResizePoint(rPt,*(const Point*)p1,*(const boost::rational<long>*)p2,*(const boost::rational<long>*)p3);
+    if (pC1!=NULL) ResizePoint(*pC1,*(const Point*)p1,*(const boost::rational<long>*)p2,*(const boost::rational<long>*)p3);
+    if (pC2!=NULL) ResizePoint(*pC2,*(const Point*)p1,*(const boost::rational<long>*)p2,*(const boost::rational<long>*)p3);
 }
 
-void SdrPolyEditView::ResizeMarkedPoints(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrPolyEditView::ResizeMarkedPoints(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     ForceUndirtyMrkPnt();
     OUString aStr(ImpGetResStr(STR_EditResize));
diff --git a/svx/source/svdraw/svdsnpv.cxx b/svx/source/svdraw/svdsnpv.cxx
index 00a61b109137..c80176c79725 100644
--- a/svx/source/svdraw/svdsnpv.cxx
+++ b/svx/source/svdraw/svdsnpv.cxx
@@ -393,7 +393,7 @@ sal_uInt16 SdrSnapView::SnapPos(Point& rPnt, const SdrPageView* pPV) const
     }
     if(bGridSnap)
     {
-        double fSnapWidth = aSnapWdtX;
+        double fSnapWidth = boost::rational_cast<double>(aSnapWdtX);
         if(dx == NOT_SNAPPED && fSnapWidth != 0.0)
         {
             double fx = (double)x;
@@ -408,7 +408,7 @@ sal_uInt16 SdrSnapView::SnapPos(Point& rPnt, const SdrPageView* pPV) const
             x = (long)((double)x * fSnapWidth + (double)pPV->GetPageOrigin().X());
             dx = 0;
         }
-        fSnapWidth = aSnapWdtY;
+        fSnapWidth = boost::rational_cast<double>(aSnapWdtY);
         if(dy == NOT_SNAPPED && fSnapWidth)
         {
             double fy = (double)y;
diff --git a/svx/source/svdraw/svdtext.cxx b/svx/source/svdraw/svdtext.cxx
index ed99ae31008f..acd1546b1cad 100644
--- a/svx/source/svdraw/svdtext.cxx
+++ b/svx/source/svdraw/svdtext.cxx
@@ -153,12 +153,12 @@ void SdrText::SetModel( SdrModel* pNewModel )
         mpOutlinerParaObject=0;
         if (bScaleUnitChanged)
         {
-            Fraction aMetricFactor=GetMapFactor(aOldUnit,aNewUnit).X();
+            boost::rational<long> aMetricFactor=GetMapFactor(aOldUnit,aNewUnit).X();
 
             if (bSetHgtItem)
             {
                 // Now correct the frame attribute
-                nOldFontHgt=BigMulDiv(nOldFontHgt,aMetricFactor.GetNumerator(),aMetricFactor.GetDenominator());
+                nOldFontHgt=BigMulDiv(nOldFontHgt,aMetricFactor.numerator(),aMetricFactor.denominator());
                 SetObjectItem(SvxFontHeightItem(nOldFontHgt, 100, EE_CHAR_FONTHEIGHT));
             }
         }
diff --git a/svx/source/svdraw/svdtrans.cxx b/svx/source/svdraw/svdtrans.cxx
index 10ea4007a055..442f3e71d532 100644
--- a/svx/source/svdraw/svdtrans.cxx
+++ b/svx/source/svdraw/svdtrans.cxx
@@ -32,46 +32,20 @@ void MoveXPoly(XPolygon& rPoly, const Size& S)
     rPoly.Move(S.Width(),S.Height());
 }
 
-void ResizeRect(Rectangle& rRect, const Point& rRef, const Fraction& rxFact, const Fraction& ryFact, bool bNoJustify)
+void ResizeRect(Rectangle& rRect, const Point& rRef, const boost::rational<long>& rxFact, const boost::rational<long>& ryFact, bool bNoJustify)
 {
-    Fraction xFact(rxFact);
-    Fraction yFact(ryFact);
+    boost::rational<long> xFact(rxFact);
+    boost::rational<long> yFact(ryFact);
 
-    {
-        if (xFact.GetDenominator()==0) {
-            long nWdt=rRect.Right()-rRect.Left();
-            if (xFact.GetNumerator()>=0) { // catch divisions by zero
-                xFact=Fraction(xFact.GetNumerator(),1);
-                if (nWdt==0) rRect.Right()++;
-            } else {
-                xFact=Fraction(xFact.GetNumerator(),-1);
-                if (nWdt==0) rRect.Left()--;
-            }
-        }
-        rRect.Left()  =rRef.X()+Round(((double)(rRect.Left()  -rRef.X())*xFact.GetNumerator())/xFact.GetDenominator());
-        rRect.Right() =rRef.X()+Round(((double)(rRect.Right() -rRef.X())*xFact.GetNumerator())/xFact.GetDenominator());
-    }
-    {
-        if (yFact.GetDenominator()==0) {
-            long nHgt=rRect.Bottom()-rRect.Top();
-            if (yFact.GetNumerator()>=0) { // catch divisions by zero
-                yFact=Fraction(yFact.GetNumerator(),1);
-                if (nHgt==0) rRect.Bottom()++;
-            } else {
-                yFact=Fraction(yFact.GetNumerator(),-1);
-                if (nHgt==0) rRect.Top()--;
-            }
-
-            yFact=Fraction(yFact.GetNumerator(),1); // catch divisions by zero
-        }
-        rRect.Top()   =rRef.Y()+Round(((double)(rRect.Top()   -rRef.Y())*yFact.GetNumerator())/yFact.GetDenominator());
-        rRect.Bottom()=rRef.Y()+Round(((double)(rRect.Bottom()-rRef.Y())*yFact.GetNumerator())/yFact.GetDenominator());
-    }
+    rRect.Left()  =rRef.X()+Round(((double)(rRect.Left()  -rRef.X())*xFact.numerator())/xFact.denominator());
+    rRect.Right() =rRef.X()+Round(((double)(rRect.Right() -rRef.X())*xFact.numerator())/xFact.denominator());
+    rRect.Top()   =rRef.Y()+Round(((double)(rRect.Top()   -rRef.Y())*yFact.numerator())/yFact.denominator());
+    rRect.Bottom()=rRef.Y()+Round(((double)(rRect.Bottom()-rRef.Y())*yFact.numerator())/yFact.denominator());
     if (!bNoJustify) rRect.Justify();
 }
 
 
-void ResizePoly(Polygon& rPoly, const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void ResizePoly(Polygon& rPoly, const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     sal_uInt16 nAnz=rPoly.GetSize();
     for (sal_uInt16 i=0; i<nAnz; i++) {
@@ -79,7 +53,7 @@ void ResizePoly(Polygon& rPoly, const Point& rRef, const Fraction& xFact, const
     }
 }
 
-void ResizeXPoly(XPolygon& rPoly, const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void ResizeXPoly(XPolygon& rPoly, const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     sal_uInt16 nAnz=rPoly.GetPointCount();
     for (sal_uInt16 i=0; i<nAnz; i++) {
@@ -596,10 +570,10 @@ long BigMulDiv(long nVal, long nMul, long nDiv)
     return 0x7fffffff;
 }
 
-void Kuerzen(Fraction& rF, unsigned nDigits)
+void Kuerzen(boost::rational<long>& rF, unsigned nDigits)
 {
-    sal_Int32 nMul=rF.GetNumerator();
-    sal_Int32 nDiv=rF.GetDenominator();
+    sal_Int32 nMul=rF.numerator();
+    sal_Int32 nDiv=rF.denominator();
     bool bNeg = false;
     if (nMul<0) { nMul=-nMul; bNeg=!bNeg; }
     if (nDiv<0) { nDiv=-nDiv; bNeg=!bNeg; }
@@ -625,7 +599,7 @@ void Kuerzen(Fraction& rF, unsigned nDigits)
         return;
     }
     if (bNeg) nMul=-nMul;
-    rF=Fraction(nMul,nDiv);
+    rF=boost::rational<long>(nMul,nDiv);
 }
 
 
@@ -661,7 +635,7 @@ FrPair GetInchOrMM(MapUnit eU)
         }
         default: break;
     }
-    return Fraction(1,1);
+    return boost::rational<long>(1,1);
 }
 
 FrPair GetInchOrMM(FieldUnit eU)
@@ -680,7 +654,7 @@ FrPair GetInchOrMM(FieldUnit eU)
         case FUNIT_MILE       : return FrPair(   1,63360);
         default: break;
     }
-    return Fraction(1,1);
+    return boost::rational<long>(1,1);
 }
 
 // Calculate the factor that we need to convert units from eS to eD.
@@ -694,8 +668,8 @@ FrPair GetMapFactor(MapUnit eS, MapUnit eD)
     bool bSInch=IsInch(eS);
     bool bDInch=IsInch(eD);
     FrPair aRet(aD.X()/aS.X(),aD.Y()/aS.Y());
-    if (bSInch && !bDInch) { aRet.X()*=Fraction(127,5); aRet.Y()*=Fraction(127,5); }
-    if (!bSInch && bDInch) { aRet.X()*=Fraction(5,127); aRet.Y()*=Fraction(5,127); }
+    if (bSInch && !bDInch) { aRet.X()*=boost::rational<long>(127,5); aRet.Y()*=boost::rational<long>(127,5); }
+    if (!bSInch && bDInch) { aRet.X()*=boost::rational<long>(5,127); aRet.Y()*=boost::rational<long>(5,127); }
     return aRet;
 };
 
@@ -707,8 +681,8 @@ FrPair GetMapFactor(FieldUnit eS, FieldUnit eD)
     bool bSInch=IsInch(eS);
     bool bDInch=IsInch(eD);
     FrPair aRet(aD.X()/aS.X(),aD.Y()/aS.Y());
-    if (bSInch && !bDInch) { aRet.X()*=Fraction(127,5); aRet.Y()*=Fraction(127,5); }
-    if (!bSInch && bDInch) { aRet.X()*=Fraction(5,127); aRet.Y()*=Fraction(5,127); }
+    if (bSInch && !bDInch) { aRet.X()*=boost::rational<long>(127,5); aRet.Y()*=boost::rational<long>(127,5); }
+    if (!bSInch && bDInch) { aRet.X()*=boost::rational<long>(5,127); aRet.Y()*=boost::rational<long>(5,127); }
     return aRet;
 };
 
@@ -789,7 +763,7 @@ void GetMeterOrInch(FieldUnit eFU, short& rnKomma, long& rnMul, long& rnDiv, boo
 
 void SdrFormatter::Undirty()
 {
-    if (aScale.GetNumerator()==0 || aScale.GetDenominator()==0) aScale=Fraction(1,1);
+    if (aScale.numerator()==0) aScale=boost::rational<long>(1,1);
     bool bSrcMetr,bSrcInch,bDstMetr,bDstInch;
     long nMul1,nDiv1,nMul2,nDiv2;
     short nKomma1,nKomma2;
@@ -818,9 +792,9 @@ void SdrFormatter::Undirty()
     }
 
     // temporary fraction for canceling
-    Fraction aTempFract(nMul1,nDiv1);
-    nMul1=aTempFract.GetNumerator();
-    nDiv1=aTempFract.GetDenominator();
+    boost::rational<long> aTempFract(nMul1,nDiv1);
+    nMul1=aTempFract.numerator();
+    nDiv1=aTempFract.denominator();
 
     nMul_=nMul1;
     nDiv_=nDiv1;
diff --git a/svx/source/svdraw/svdview.cxx b/svx/source/svdraw/svdview.cxx
index 981659fb2bc4..e3a50cd0135e 100644
--- a/svx/source/svdraw/svdview.cxx
+++ b/svx/source/svdraw/svdview.cxx
@@ -478,8 +478,8 @@ SdrHitKind SdrView::PickAnything(const Point& rLogicPos, SdrViewEvent& rVEvt) co
                 // account for FitToSize
                 bool bFitToSize(pTextObj->IsFitToSize());
                 if (bFitToSize) {
-                    Fraction aX(aTextRect.GetWidth()-1,aAnchor.GetWidth()-1);
-                    Fraction aY(aTextRect.GetHeight()-1,aAnchor.GetHeight()-1);
+                    boost::rational<long> aX(aTextRect.GetWidth()-1,aAnchor.GetWidth()-1);
+                    boost::rational<long> aY(aTextRect.GetHeight()-1,aAnchor.GetHeight()-1);
                     ResizePoint(aTemporaryTextRelativePosition,Point(),aX,aY);
                 }
                 // account for rotation
diff --git a/svx/source/svdraw/svdxcgv.cxx b/svx/source/svdraw/svdxcgv.cxx
index fc4e732e4851..1b070a17f1f2 100644
--- a/svx/source/svdraw/svdxcgv.cxx
+++ b/svx/source/svdraw/svdxcgv.cxx
@@ -160,7 +160,7 @@ bool SdrExchangeView::Paste(const OUString& rStr, const Point& rPos, SdrObjList*
     pObj->FitFrameToTextSize();
     Size aSiz(pObj->GetLogicRect().GetSize());
     MapUnit eMap=pMod->GetScaleUnit();
-    Fraction aMap=pMod->GetScaleFraction();
+    boost::rational<long> aMap=pMod->GetScaleFraction();
     ImpPasteObject(pObj,*pLst,aPos,aSiz,MapMode(eMap,Point(0,0),aMap,aMap),nOptions);
     return true;
 }
@@ -197,7 +197,7 @@ bool SdrExchangeView::Paste(SvStream& rInput, const OUString& rBaseURL, sal_uInt
     pObj->FitFrameToTextSize();
     Size aSiz(pObj->GetLogicRect().GetSize());
     MapUnit eMap=pMod->GetScaleUnit();
-    Fraction aMap=pMod->GetScaleFraction();
+    boost::rational<long> aMap=pMod->GetScaleFraction();
     ImpPasteObject(pObj,*pLst,aPos,aSiz,MapMode(eMap,Point(0,0),aMap,aMap),nOptions);
 
     // b4967543
@@ -267,7 +267,7 @@ bool SdrExchangeView::Paste(
     MapUnit eSrcUnit=pSrcMod->GetScaleUnit();
     MapUnit eDstUnit=pMod->GetScaleUnit();
     bool bResize=eSrcUnit!=eDstUnit;
-    Fraction xResize,yResize;
+    boost::rational<long> xResize,yResize;
     Point aPt0;
     if (bResize)
     {
@@ -403,19 +403,19 @@ void SdrExchangeView::ImpPasteObject(SdrObject* pObj, SdrObjList& rLst, const Po
     MapUnit eSrcMU=rMap.GetMapUnit();
     MapUnit eDstMU=pMod->GetScaleUnit();
     FrPair aMapFact(GetMapFactor(eSrcMU,eDstMU));
-    Fraction aDstFr(pMod->GetScaleFraction());
-    nSizX*=aMapFact.X().GetNumerator();
-    nSizX*=rMap.GetScaleX().GetNumerator();
-    nSizX*=aDstFr.GetDenominator();
-    nSizX/=aMapFact.X().GetDenominator();
-    nSizX/=rMap.GetScaleX().GetDenominator();
-    nSizX/=aDstFr.GetNumerator();
-    nSizY*=aMapFact.Y().GetNumerator();
-    nSizY*=rMap.GetScaleY().GetNumerator();
-    nSizX*=aDstFr.GetDenominator();
-    nSizY/=aMapFact.Y().GetDenominator();
-    nSizY/=rMap.GetScaleY().GetDenominator();
-    nSizY/=aDstFr.GetNumerator();
+    boost::rational<long> aDstFr(pMod->GetScaleFraction());
+    nSizX*=aMapFact.X().numerator();
+    nSizX*=rMap.GetScaleX().numerator();
+    nSizX*=aDstFr.denominator();
+    nSizX/=aMapFact.X().denominator();
+    nSizX/=rMap.GetScaleX().denominator();
+    nSizX/=aDstFr.numerator();
+    nSizY*=aMapFact.Y().numerator();
+    nSizY*=rMap.GetScaleY().numerator();
+    nSizX*=aDstFr.denominator();
+    nSizY/=aMapFact.Y().denominator();
+    nSizY/=rMap.GetScaleY().denominator();
+    nSizY/=aDstFr.numerator();
     long xs=nSizX;
     long ys=nSizY;
     Point aPos(rCenter.X()-xs/2,rCenter.Y()-ys/2);
diff --git a/svx/source/table/svdotable.cxx b/svx/source/table/svdotable.cxx
index 95dd3e673ad3..fb66230a3d00 100644
--- a/svx/source/table/svdotable.cxx
+++ b/svx/source/table/svdotable.cxx
@@ -1965,7 +1965,7 @@ void SdrTableObj::NbcMove(const Size& rSiz)
 
 
 
-void SdrTableObj::NbcResize(const Point& rRef, const Fraction& xFact, const Fraction& yFact)
+void SdrTableObj::NbcResize(const Point& rRef, const boost::rational<long>& xFact, const boost::rational<long>& yFact)
 {
     Rectangle aOldRect( maLogicRect );
     ResizeRect(maLogicRect,rRef,xFact,yFact);
diff --git a/svx/source/unodraw/UnoGraphicExporter.cxx b/svx/source/unodraw/UnoGraphicExporter.cxx
index 6e9ab225d123..6155adc4913a 100644
--- a/svx/source/unodraw/UnoGraphicExporter.cxx
+++ b/svx/source/unodraw/UnoGraphicExporter.cxx
@@ -111,8 +111,8 @@ namespace {
 
         Sequence< PropertyValue >   maFilterData;
 
-        Fraction    maScaleX;
-        Fraction    maScaleY;
+        boost::rational<long>    maScaleX;
+        boost::rational<long>    maScaleY;
 
         ExportSettings( SdrModel* pDoc );
     };
@@ -407,7 +407,7 @@ VirtualDevice* GraphicExporter::CreatePageVDev( SdrPage* pPage, sal_uIntPtr nWid
     // use scaling?
     if( nWidthPixel )
     {
-        const Fraction aFrac( (long) nWidthPixel, pVDev->LogicToPixel( aPageSize, aMM ).Width() );
+        const boost::rational<long> aFrac( (long) nWidthPixel, pVDev->LogicToPixel( aPageSize, aMM ).Width() );
 
         aMM.SetScaleX( aFrac );
 
@@ -417,7 +417,7 @@ VirtualDevice* GraphicExporter::CreatePageVDev( SdrPage* pPage, sal_uIntPtr nWid
 
     if( nHeightPixel )
     {
-        const Fraction aFrac( (long) nHeightPixel, pVDev->LogicToPixel( aPageSize, aMM ).Height() );
+        const boost::rational<long> aFrac( (long) nHeightPixel, pVDev->LogicToPixel( aPageSize, aMM ).Height() );
 
         if( nWidthPixel == 0 )
             aMM.SetScaleX( aFrac );
@@ -577,25 +577,25 @@ void GraphicExporter::ParseSettings( const Sequence< PropertyValue >& aDescripto
                 {
                     sal_Int32 nVal = 1;
                     if( pDataValues->Value >>= nVal )
-                        rSettings.maScaleX = Fraction( nVal, rSettings.maScaleX.GetDenominator() );
+                        rSettings.maScaleX = boost::rational<long>( nVal, rSettings.maScaleX.denominator() );
                 }
                 else if ( pDataValues->Name == "ScaleXDenominator" )
                 {
                     sal_Int32 nVal = 1;
                     if( pDataValues->Value >>= nVal )
-                        rSettings.maScaleX = Fraction( rSettings.maScaleX.GetNumerator(), nVal );
+                        rSettings.maScaleX = boost::rational<long>( rSettings.maScaleX.numerator(), nVal );
                 }
                 else if ( pDataValues->Name == "ScaleYNumerator" )
                 {
                     sal_Int32 nVal = 1;
                     if( pDataValues->Value >>= nVal )
-                        rSettings.maScaleY = Fraction( nVal, rSettings.maScaleY.GetDenominator() );
+                        rSettings.maScaleY = boost::rational<long>( nVal, rSettings.maScaleY.denominator() );
                 }
                 else if ( pDataValues->Name == "ScaleYDenominator" )
                 {
                     sal_Int32 nVal = 1;
                     if( pDataValues->Value >>= nVal )
-                        rSettings.maScaleY = Fraction( rSettings.maScaleY.GetNumerator(), nVal );
+                        rSettings.maScaleY = boost::rational<long>( rSettings.maScaleY.numerator(), nVal );
                 }
 
                 pDataValues++;
diff --git a/svx/source/unodraw/unoshape.cxx b/svx/source/unodraw/unoshape.cxx
index 5c283429e435..c3d17a585557 100644
--- a/svx/source/unodraw/unoshape.cxx
+++ b/svx/source/unodraw/unoshape.cxx
@@ -1219,8 +1219,8 @@ void SAL_CALL SvxShape::setSize( const awt::Size& rSize )
 
         if(mpObj->GetObjInventor() == SdrInventor && mpObj->GetObjIdentifier() == OBJ_MEASURE )
         {
-            Fraction aWdt(aLocalSize.Width(),aRect.Right()-aRect.Left());
-            Fraction aHgt(aLocalSize.Height(),aRect.Bottom()-aRect.Top());
+            boost::rational<long> aWdt(aLocalSize.Width(),aRect.Right()-aRect.Left());
+            boost::rational<long> aHgt(aLocalSize.Height(),aRect.Bottom()-aRect.Top());
             Point aPt = mpObj->GetSnapRect().TopLeft();
             mpObj->Resize(aPt,aWdt,aHgt);
         }