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#include<iostream>
#include<string>
using namespace std;
char menu();
void addFractions( int a1, int b1, int a2, int b2, int& num, int& den );
void subtractFractions( int a1, int b1, int a2, int b2, int& num, int& den );
void multiplyFractions( int a1, int b1, int a2, int b2, int& num, int& den );
void divideFractions( int a1, int b1, int a2, int b2, int& num, int& den );
int main()
{
int a1, b1, a2, b2, num, den;
char ch = menu();
try
{
cout << "\n\tEnter the numerator of the fraction 1: ";
cin >> a1;
cout << "\tEnter the denominator of fraction 1: ";
cin >> b1;
if ( b1 == 0 )
throw b1;
else if( b1 < 0 )
{
string s = "Negative denominator exception";
throw s;
}
cout << "\n\tEnter the numerator of fraction 2: ";
cin >> a2;
cout << "\tEnter the denominator of fraction 2: ";
cin >> b2;
if( b2 == 0 )
throw b2;
else if( b2 < 0 )
{
string s = "Negative denominator exception";
throw s;
}
switch( ch )
{
case '+':
addFractions( a1, b1, a2, b2, num, den );
cout << "\n\tThe sum of the fractions is" << num << "/" << den;
break;
case '-':
subtractFractions( a1, b1, a2, b2, num, den );
cout << "\n\tThe difference of the fraction is " << num << "/" << den;
case '*':
multiplyFractions( a1, b1, a2, b2, num, den );
cout << "\n\tThe product of the fractions is " << num << "/" << den;
case '/':
if( a2 != 0 )
{
divideFractions( a1, b1, a2, b2, num, den );
cout << "\n\tDivision of the fractions is " << num << "/" << den;
}
else
cout << "\n\tDenominator fraction cannot be zero.";
break;
}
}
catch( int x )
{
cout << "Denominator is " << x << "exception" << endl;
}
catch( string s )
{
cout << s;
}
cout << endl;
system( "pause" );
return 0;
}
char menu()
{
char operationType;
cout << "\n\n\tProgram that lets the user perform " << endl;
cout << "arithmetic operations on fractions." << endl;
cout << "\n\n\t\t M E N U";
cout << "\n\nAddition :+";
cout << "\n\tSubtraction :-";
cout << "\n\tMultipication :*";
cout << "\n\tDivision :/";
cout << "\n\n\tEnter operation to perform: ";
cin >> operationType;
return operationType;
}
void addFractions( int a1, int b1, int a2, int b2, int& num, int& den )
{
num = ( a1 * b2 ) + ( b1 * a2 );
den = b1 * b2;
}
void subtractFractions( int a1, int b1, int a2, int b2, int& num, int& den )
{
num = ( a1 * b2 ) - ( b1 * b2 );
den = b1 * b2;
}
void multiplyFractions( int a1, int b1, int a2, int b2, int& num, int& den )
{
num = a1 * a2;
den = b1 * a2;
}
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