How to convert decimal to fractions?

Question

What I need to convert decimal to fractions. It is easy to convert to 10\'s feet.

1.5 => 15/10

This can do via this code:

Answer 1

I tried adding this as an edit, but it was denied. This answer builds off of @Hristo93's answer but finishes the gcd method:

public class DecimalToFraction {

    private int numerator, denominator;

    public Rational(double decimal) {
        String string = String.valueOf(decimal);
        int digitsDec = string.length() - 1 - s.indexOf('.');
        int denominator = 1; 

        for (int i = 0; i < digitsDec; i++) {
            decimal *= 10;    
            denominator *= 10;
        }

        int numerator = (int) Math.round(decimal);
        int gcd = gcd(numerator, denominator); 

        this.numerator = numerator / gcd;
        this.denominator = denominator /gcd;
    }

    public static int gcd(int numerator, int denom) {
        return denominator == 0 ? numerator : gcm(denominator, numerator % denominator);
    }

    public String toString() {
        return String.valueOf(numerator) + "/" + String.valueOf(denominator);
    }

    public static void main(String[] args) {
        System.out.println(new Rational(1.5));
    }
}