基础编程题目集 7-24 约分最简分式 (15分)

#include 
int gcd(int a, int b)
{
    /*if(a
    int r = a % b;
    while (r)
    {
        a = b;
        b = r;
        r = a % b;
    }
    return b;
}
int main()
{
    int a, b;
    scanf("%d/%d", &a, &b);
    int n = gcd(a, b);
    printf("%d/%d", a / n, b / n);
}