מספרים אי רציונליים

 class Rational
    {
        private int x;
        private int y;
        public Rational(int x, int y)
        {
            this.x = x;
            this.y = y;
        }
        public int GetNumerator()
        {
            return this.x;
        }
        public int GetDenom()
        {
            return this.y;
        }
        public bool IsEqual(Rational num)
        {
            if (this.x * num.y == this.y * num.x)
                return true;
            else return false;
        }
        public Rational Multiply(Rational num)
        {
            Rational R = new Rational(this.x * num.x, this.y * num.y);
            return R;
        }
        public Rational Divide(Rational num)
        {
            Rational D = new Rational(this.x* num.y, this.y * num.x);
            return D;
        }
        public override string ToString()
        {
            return string.Format(x + "/" + y);
        }
    }

    class Program
    {
        public static Rational Plus (Rational num,Rational num2)
        {
            int a = num.GetNumerator();
            int b = num.GetDenom(), c = num2.GetNumerator(), d = num2.GetDenom();
            Rational r1 = new Rational(a * d + c * b, a * d + d * a);
            return r1;


        }
        static void Main(string[] args)
        {
            Rational r2 = new Rational(1, 6);
            Rational r1 = new Rational(2, 4);
            Console.WriteLine(Plus(r1, r2));