#include <stdio.h>
int main () {
    int dividend,divisor;
    scanf("%d/%d",&dividend,&divisor);
    int a,b;
    a=dividend;
    b=divisor;
    while(b>0){
        int t;
        t=a%b;
        a=b;
        b=t;
    } printf("%d/%d",dividend/a,divisor/a);
    
    return 0;
}