5-24 约分最简分式 (15分)

#include <stdio.h>int i,j;int main(){    scanf("%d/%d",&i,&j);int a=i;int b=j;int m;for(m=2;m<=a;m++){while(a%m==0&&b%m==0){a/=m;b/=m;}}printf("%d/%d",a,b);}