this is the new code.

Code:
#include <iostream.h>

int GCD(int a, int b )
{
	int remainder, quotient, divisor, numerator;
		if (a > b)
		{
      	remainder=a%b;
			quotient=a/b; divisor=b;
		}
      	else
     	   {
				remainder=b%a;
				quotient=b/a;divisor=a;
         }

		
		while( remainder!=0 )
		{
			numerator=divisor;
			divisor=quotient;
			remainder=numerator%divisor;
			quotient=numerator/divisor;
		}
      return divisor;
    
}

int simplify1(int a, int GCD )
{
	int product1;
      {
      do
      {
      	product1=a / GCD;
		}
      while ( a!=0);
      }
return product1;
}

int simplify2(int b, int GCD )

	int product2;      // error 1
      {       // error 2
      do
      {
         product2=b / GCD;
		}
      while ( b!=0 );
      }

return product2;


int main()
{
	int w, x;
   char junk;

	cout << "This program allows calculating the GCD\n";
	cout << "Value of first numerator: ";
	cin >> w;
	cout << "Value of first denominator: ";
	cin >> x;


	cout << "\nThe Greatest Common Divisor of "
	     << w << " and " << x << " is " << GCD(w, x) << endl;
    cout << "\nThe simplified fraction is "
         << w << " and " << x << simplify1(w,GCD(w, x)) << " and "<<
            simplify2(x,GCD(w, x)) << endl;

   cin >> junk; //This input allows for display.

	return 0;
}
and here is the errors

Code:
Info :Compiling C:\Documents and Settings\labpc\Desktop\fraction hoskins beta v2.cpp
Error:  fraction hoskins beta v2.cpp(44,5):Declaration syntax error
Error:  fraction hoskins beta v2.cpp(45,8):Declaration terminated incorrectly