将Double格式化为分数

public static String doubleToFraction(double value) {
    int intValue = (int) (value * 10000);
    int gcd = gcd(intValue, 10000);
    int numerator = intValue / gcd;
    int denominator = 10000 / gcd;
    return numerator + "/" + denominator;
}

public static int gcd(int a, int b) {
    while (b != 0) {
        int temp = b;
        b = a % b;
        a = temp;
    }
    return a;
}