Simplify Fractions [C]

#include<stdio.h>

int LargestCommonDivisor(int a, int b)
{
    while (a > 0)
    {
        if (b > a)
        {
            int Temp = a;
            a = b;
            b = Temp;
        }
        a = a - b;
    }
    return b;
}


int main()
{
    int a, b, LCD;
    scanf("%d/%d", &a, &b);
    LCD = LargestCommonDivisor(a,b);
    printf("%d/%d\n", LCD, b/LCD);
    return 0;
}