Thread: syntax errors

it is giving me wrong output.

Code:

#include <iostream.h>

void addfraction (int w, int x, int y, int z, int& newnumerator, int& newdenominator)
	{
	int number1, number2;
   number1=w*z;
   number2=y*x;
   newdenominator=z*x;
   newnumerator=number1+number2;
   };

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 simplify(int a, int GCD )
{
	int product;
      {
      {
      	product=a / GCD;
		}
      }
return product;
}


int main()
{
	int w, x,y,z,a,b;
   char junk;

	cout << "Value of first numerator: ";
	cin >> w;
	cout << "Value of first denominator: ";
	cin >> x;
   cout << "Value of second numerator: ";
	cin >> y;
	cout << "Value of second denominator: ";
	cin >> z;
   addfraction(w,x,y,z,a,b);

	cout << "\nThe Greatest Common Divisor of "
	     << a << " and " << b << " is " << GCD(a, b) << endl;
    cout << "\nThe simplified fraction of "
         << a << " and " << b << " is " << simplify(a,GCD(a, b)) << " and "<<
            simplify(b,GCD(a, b)) << endl;
   cout<<a<<'/'<<b<<endl;
   cin >> junk; //This input allows for display.
  //take care of improper fractions
	return 0;
}

It is giving me huge numbers as answers. Also I am supposed to account for whole numbers and dont know how.

It worked before I had to add the fractions together.