#include <iostream>
#include <cstdio>

using namespace std;
unsigned int hcf(unsigned long a, unsigned long b) {
   if (b == 0) {
      return a;
   } else {
      return hcf(b, a % b);
   }
}
int main()
{
//  freopen("out.txt","w",stdout);
//  freopen("in.txt","r",stdin);
    unsigned long  T,N[100000],M[100000],i,j,no,ne,mo,me,n1,n2,k;
    cin>>T;
    for(i=0;i<T;i++) cin>>N[i]>>M[i];
    for(i=0;i<T;i++)
    {
        no = ne = N[i]/2;
        if(N[i]%2!=0) no++;
        mo = me = M[i]/2;
        if(M[i]%2!=0) mo++;
        n1 = ne*mo + no*me;
        n2 = N[i]*M[i];
        do
        {
            k = hcf(n1,n2);
            n1/=k;
            n2/=k;
        }while(k!=1);
        cout<<n1<<"/"<<n2<<endl;
    }
}