int g ( int a, int b )
{
  int c;
  while ( a != 0 ) {
     c = a; a = b%a;  b = c;
  }
  return b;
}
int main(void)
{
char l[10];char *p;int c;
while(gets(l)){
strtok_r (l,"/",&p);
c=g(atoi(l),atoi(p));
printf("%d/%d\n",atoi(l)/c, atoi(p)/c);
}
}