Diferenta a doua fractii

/*Avem fractiile a/b si c/d.
Afisati fractia diferenta (x/y = a/b-c/d) sub forma ireductibila
Ex: 17/75 - 2/75 = 1/5
Date de intrare a,b,c,d
Date de iesire: x,y
*/
#include <iostream>
using namespace std;

int main(){
    int a,b,c,d;
    int x,y;
    cin >> a >>b>>c>>d;
    x=a*d-c*b;
    y=b*d;

    int A=x,B=y,r;
    while(B!=0){
        r=A%B;
        A=B;
        B=r;
    }
    cout << x/A << " " << y/A;

}