diff --git a/src/CalcManager/CEngine/Rational.cpp b/src/CalcManager/CEngine/Rational.cpp
index 7b63903d..c6a3432d 100644
--- a/src/CalcManager/CEngine/Rational.cpp
+++ b/src/CalcManager/CEngine/Rational.cpp
@@ -389,96 +389,70 @@ namespace CalcEngine
         return this->P().IsZero();
     }
 
-    bool Rational::IsLess(Rational const& r, int32_t precision) const
+    bool operator==(Rational const& lhs, Rational const& rhs)
     {
-        PRAT thisRat = this->ToPRAT();
-        PRAT rRat = r.ToPRAT();
+        PRAT lhsRat = lhs.ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
 
         bool result = false;
         try
         {
-            result = rat_lt(thisRat, rRat, precision);
+            result = rat_equ(lhsRat, rhsRat, RATIONAL_PRECISION);
         }
         catch (DWORD error)
         {
-            destroyrat(thisRat);
-            destroyrat(rRat);
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
             throw(error);
         }
 
-        destroyrat(thisRat);
-        destroyrat(rRat);
+        destroyrat(lhsRat);
+        destroyrat(rhsRat);
 
         return result;
     }
 
-    bool Rational::IsLessEq(Rational const& r, int32_t precision) const
+    bool operator!=(Rational const& lhs, Rational const& rhs)
     {
-        PRAT thisRat = this->ToPRAT();
-        PRAT rRat = r.ToPRAT();
+        return !(lhs == rhs);
+    }
+
+    bool operator<(Rational const& lhs, Rational const& rhs)
+    {
+        PRAT lhsRat = lhs.ToPRAT();
+        PRAT rhsRat = rhs.ToPRAT();
 
         bool result = false;
         try
         {
-            result = rat_le(thisRat, rRat, precision);
+            result = rat_lt(lhsRat, rhsRat, RATIONAL_PRECISION);
         }
         catch (DWORD error)
         {
-            destroyrat(thisRat);
-            destroyrat(rRat);
+            destroyrat(lhsRat);
+            destroyrat(rhsRat);
             throw(error);
         }
 
-        destroyrat(thisRat);
-        destroyrat(rRat);
+        destroyrat(lhsRat);
+        destroyrat(rhsRat);
 
         return result;
     }
 
-    bool Rational::IsGreaterEq(Rational const& r, int32_t precision) const
+    bool operator>(Rational const& lhs, Rational const& rhs)
     {
-        PRAT thisRat = this->ToPRAT();
-        PRAT rRat = r.ToPRAT();
-
-        bool result = false;
-        try
-        {
-            result = rat_ge(thisRat, rRat, precision);
-        }
-        catch (DWORD error)
-        {
-            destroyrat(thisRat);
-            destroyrat(rRat);
-            throw(error);
-        }
-
-        destroyrat(thisRat);
-        destroyrat(rRat);
-
-        return result;
+        return rhs < lhs;
     }
 
-    bool Rational::IsEq(Rational const& r, int32_t precision) const
+    bool operator<=(Rational const& lhs, Rational const& rhs)
     {
-        PRAT thisRat = this->ToPRAT();
-        PRAT rRat = r.ToPRAT();
+        return !(lhs > rhs);
+    }
 
-        bool result = false;
-        try
-        {
-            result = rat_equ(thisRat, rRat, precision);
-        }
-        catch (DWORD error)
-        {
-            destroyrat(thisRat);
-            destroyrat(rRat);
-            throw(error);
-        }
-
-        destroyrat(thisRat);
-        destroyrat(rRat);
-
-        return result;
+    bool operator>=(Rational const& lhs, Rational const& rhs)
+    {
+        return !(lhs < rhs);
     }
 
     wstring Rational::ToString(uint32_t radix, NUMOBJ_FMT fmt, int32_t precision) const
diff --git a/src/CalcManager/CEngine/scicomm.cpp b/src/CalcManager/CEngine/scicomm.cpp
index 478c6d7a..9f8284b0 100644
--- a/src/CalcManager/CEngine/scicomm.cpp
+++ b/src/CalcManager/CEngine/scicomm.cpp
@@ -1002,9 +1002,9 @@ int CCalcEngine::IdcSetAngleTypeDecMode(int idc)
 
 bool CCalcEngine::IsCurrentTooBigForTrig()
 {
-    if (m_currentVal.IsGreaterEq(m_maxTrigonometricNum, m_precision))
+    if (m_currentVal >= m_maxTrigonometricNum)
     {
-        m_currentVal = Rational{};
+        m_currentVal = 0;
         return true;
     }
 
diff --git a/src/CalcManager/CEngine/scidisp.cpp b/src/CalcManager/CEngine/scidisp.cpp
index 5128a5fc..aa974d8a 100644
--- a/src/CalcManager/CEngine/scidisp.cpp
+++ b/src/CalcManager/CEngine/scidisp.cpp
@@ -61,7 +61,7 @@ CalcEngine::Rational CCalcEngine::TruncateNumForIntMath(CalcEngine::Rational con
 
     // Can be converting a dec negative number to Hex/Oct/Bin rep. Use 2's complement form
     // Check the range.
-    if (result.IsLess(0, m_precision))
+    if (result < 0)
     {
         // if negative make positive by doing a twos complement
         result = -(result) - 1;
@@ -83,7 +83,7 @@ void CCalcEngine::DisplayNum(void)
     //  called.
     //
     if (m_bRecord ||
-        !gldPrevious.value.IsEq(m_currentVal, m_precision) ||
+        gldPrevious.value != m_currentVal ||
         gldPrevious.precision != m_precision ||
         gldPrevious.radix != m_radix ||
         gldPrevious.nFE != (int)m_nFE ||
diff --git a/src/CalcManager/CEngine/scioper.cpp b/src/CalcManager/CEngine/scioper.cpp
index 93b33995..6e914b51 100644
--- a/src/CalcManager/CEngine/scioper.cpp
+++ b/src/CalcManager/CEngine/scioper.cpp
@@ -31,7 +31,7 @@ CalcEngine::Rational CCalcEngine::DoOperation(int operation, CalcEngine::Rationa
 
         case IDC_RSHF:
         {
-            if (m_fIntegerMode && result.IsGreaterEq(Rational{ m_dwWordBitWidth }, m_precision)) // Lsh/Rsh >= than current word size is always 0
+            if (m_fIntegerMode && result >= m_dwWordBitWidth) // Lsh/Rsh >= than current word size is always 0
             {
                 throw CALC_E_NORESULT;
             }
@@ -55,7 +55,7 @@ CalcEngine::Rational CCalcEngine::DoOperation(int operation, CalcEngine::Rationa
         }
 
         case IDC_LSHF:
-            if (m_fIntegerMode && result.IsGreaterEq(Rational{ m_dwWordBitWidth }, m_precision)) // Lsh/Rsh >= than current word size is always 0
+            if (m_fIntegerMode && result >= m_dwWordBitWidth) // Lsh/Rsh >= than current word size is always 0
             {
                 throw CALC_E_NORESULT;
             }
diff --git a/src/CalcManager/Header Files/Rational.h b/src/CalcManager/Header Files/Rational.h
index 1a02cb8f..4e2f8097 100644
--- a/src/CalcManager/Header Files/Rational.h	
+++ b/src/CalcManager/Header Files/Rational.h	
@@ -59,10 +59,13 @@ namespace CalcEngine
         Rational Not(Rational const& chopNum, int32_t precision) const;
 
         bool IsZero() const;
-        bool IsLess(Rational const& r, int32_t precision) const;
-        bool IsLessEq(Rational const& r, int32_t precision) const;
-        bool IsGreaterEq(Rational const& r, int32_t precision) const;
-        bool IsEq(Rational const& r, int32_t precision) const;
+
+        friend bool operator==(Rational const& lhs, Rational const& rhs);
+        friend bool operator!=(Rational const& lhs, Rational const& rhs);
+        friend bool operator<(Rational const& lhs, Rational const& rhs);
+        friend bool operator>(Rational const& lhs, Rational const& rhs);
+        friend bool operator<=(Rational const& lhs, Rational const& rhs);
+        friend bool operator>=(Rational const& lhs, Rational const& rhs);
 
         std::wstring ToString(uint32_t radix, NUMOBJ_FMT format, int32_t precision) const;
         uint64_t ToUInt64_t(int32_t precision) const;