简化Java中的分数

import java.math.BigInteger;

public class Fraction {
    private int numerator;
    private int denominator;

    public Fraction(int numerator, int denominator) {
        this.numerator = numerator;
        this.denominator = denominator;
        reduce();
    }

    private void reduce() {
        int gcd = BigInteger.valueOf(numerator).gcd(BigInteger.valueOf(denominator)).intValue();
        numerator /= gcd;
        denominator /= gcd;
    }

    public int getNumerator() {
        return numerator;
    }

    public int getDenominator() {
        return denominator;
    }

    public static void main(String[] args) {
        Fraction fraction = new Fraction(10, 20);
        System.out.println("Numerator: " + fraction.getNumerator());
        System.out.println("Denominator: " + fraction.getDenominator());
    }
}