using System;

​

public class Program

{

    public static void Main()

    {

        Fraction f1 = new Fraction(2, 3);

        Fraction f2 = new Fraction(3, 5);

        Fraction result = f1 + f2;

        Console.WriteLine(result.Value);

    }

}

​

public class Fraction

{

    private int _numerator;

    private int _denominator;

    public Fraction(int numerator, int denominator)

    {

        _numerator = numerator;

        _denominator = denominator;

    }

​

    public double Value => ((double)_numerator) / _denominator;

    public static Fraction operator +(Fraction first, Fraction second)

    {

        int numerator = first._numerator * second._denominator + second._numerator * first._denominator;

        int denominator = first._denominator * second._denominator;

        return new Fraction(numerator, denominator);

    }

}