#include<iostream>
#include<math.h>
using namespace std;
struct phanso
{
        int tu;
        int mau;
};
int ucln(int a, int b)
{
     int c=abs(a);
     int d=abs(b);
     while(c!=d)
     {
                if(c>d) c=c-d;
                else d=d-c;
     }
     return d;
}
int main()
{
     phanso m;
     cout<<"tu so bang: ";cin>>m.tu;
     cout<<"mau so bang: ";cin>>m.mau;
     if(m.mau==0) cout<<" khong thoa man"<<endl;
     else
     {
         if(m.tu==0) cout<<"phan so bang 0"<<endl;
         else
         {
             int x;
             x=ucln(m.tu, m.mau);
             m.tu=m.tu/x;
             m.mau=m.mau/x;
             cout<<"phan so o dang toi gian la: ";
             if(abs(m.mau)==1)
             {
                    if((m.tu*m.mau)<0) cout<<"-"<<abs(m.tu)<<endl;
                    else cout<<abs(m.tu)<<endl;
             }
             else
             {
                 if((m.tu*m.mau)<0) cout<<"-"<<abs(m.tu)<<"/"<<abs(m.mau)<<endl;
                 else cout<<abs(m.tu)<<"/"<<abs(m.mau)<<endl;
             }
         }
     }
     system("pause");
}