//就是求最大公约数,尽量优化了
public static void main(String[] args) {
int n = 10;
int d = 15;
Integer max = null;
if (d % n == 0 || n % d == 0) {
max = d > n ? n : d;
} else {
max = max(d, n);
}
n = n / max;
d = d / max;
System.out.println(n + "/" + d);
}
public static int max(int d, int n) {
while (n != 0) {
int maxNum = d % n;
d = n;
n = maxNum;
}
return d;
}