Hello All,

I've put together this program for a rational class and it runs, but the problem is, it doesn't do what it's supposed to do. Any ideas? Thanks in advance.

See ya on the flipside,

Desh2350

```
// This program will do arithmetic operations on two rational numbers entered from the keyboard.
#include <iostream>
using namespace std;
class Rational
{
public:
Rational(int num = 0, int den = 1);
double addition (Rational c);
double subtraction (Rational c);
double multiplication (Rational c);
double division (Rational c);
void printRational ();
void printRationalAsDouble ();
private:
int numerator; // initializes numerator
int denominator; // initializes denominator
double d; // initializes d
double x; // initializes x
private:
double reduction ();
};
Rational::Rational(int num, int den) : numerator(num), denominator(den)
{
}
double Rational::addition(Rational c)
{
numerator = numerator + c.numerator; // adds numerator
denominator = denominator + c.denominator; // add denominator
return reduction();
}
double Rational::subtraction(Rational c)
{
numerator = numerator - c.numerator; // subtracts numerator
denominator = denominator - c.denominator; // subtracts denominator
return reduction();
}
double Rational::multiplication(Rational c)
{
numerator = numerator * c.numerator; // multiplies numerator
denominator = denominator * c.denominator; // multiplies denominator
return reduction();
}
double Rational::division(Rational c)
{
numerator = numerator * c.denominator; // divides numerator and denominator
denominator = denominator * c.numerator; // divdes denominator and numerator
return reduction();
}
void Rational::printRational()
{
cout << numerator << "/" << denominator; // prints fraction
}
void Rational::printRationalAsDouble()
{
cout << d / static_cast<float>( x ); // prints as a double number
}
double Rational::reduction()
{
int largest; // initializes largest
largest = numerator > denominator ? numerator : denominator;
int gcd = 0; // greatest common divisor
for ( int loop = 2; loop <= largest; loop++ ) // initializes loop to 2, if loop is less that or equal to the largest, then increment the loop counter.
if ( numerator % loop == 0 && denominator % loop == 0 ) //if the loop's remainder equals 0 and the denominator's remainder equals 0,
gcd = loop; // then the greatest common denominator is assigned the value of the loop.
if (gcd != 0)
{ // if the greatest common denominator does not equal 0, the divide both the numerator and the denominator by the greatest common denominator.
numerator /= gcd;
denominator /= gcd;
} // end if
return gcd;
} // end function reduction
int main()
{
Rational c; // instantiates objects c of class Rational
cout << "The result of the calculation is:";
c.printRational();
cout << "The result of the calculation is:";
c.printRationalAsDouble();
fflush(stdin);
cin.get();
}
```