5.1.1

#include <iostream>

using namespace std;

int main()
{
    int a,b,c,d,m,n,k;
    cin>>a>>b>>c>>d;
    m=a*d+c*b;
    n=b*d;
    if (n>m) k=n;
        else k=m;

    for (int i=k;i>0;i--) //
    {
        if (n%i==0 && m%i==0)
        {
            n/=i;
            m/=i;
            break;
        }
    }
    cout<<m<<" ";
    cout<<n;

    return 0;
}