import java.util.*;enum C{C;System Z;{Scanner S=new Scanner(Z.in).useDelimiter("/|\n");for(int a,b,n,d;S==S;Z.out.println(d>a?n/a+"/"+d/a:n/d))for(a=n=S.nextInt(),b=d=S.nextInt();b>0;b=a%(a=b));}}