9.2. The solution must be in C#. Please use the code below.

Add an operator*() method to the Fraction class created in Programming Exercise 11a so that it correctly multiplies two Fractions. The result should be in proper, reduced format. Demonstrate that the method works correctly in a program named FractionDemo2.

using static System.Console; class FractionDemo2 { static void Main() { Fraction f1 = new Fraction(1, 4); Fraction f2 = new Fraction(1, 8); Fraction f3 = new Fraction(2, 1, 2); Fraction f4 = new Fraction(); Fraction answer = new Fraction(); answer = f1 + f2; WriteLine("{0} + {1} = {2}", f1.FracString(), f2.FracString(), answer.FracString()); answer = f1 + f3; WriteLine("{0} + {1} = {2}", f1.FracString(), f3.FracString(), answer.FracString()); answer = f2 + f3; WriteLine("{0} + {1} = {2}", f2.FracString(), f3.FracString(), answer.FracString()); } } class Fraction { private int wholeNum; private int numerator; private int denominator; public Fraction(int w, int n, int d) { WholeNum = w; Numerator = n; Denominator = d; } public Fraction(int n, int d) : this(0, n, d) { } public Fraction() : this(0, 0, 1) { } public int WholeNum { get { return wholeNum; } set { wholeNum = value; } } public int Numerator { get { return numerator; } set { numerator = value; } } public int Denominator { get { return denominator; } set { if(value != 0) denominator = value; else denominator = 1; } } public static Fraction operator+(Fraction f1, Fraction f2) { int num1 = (f1.WholeNum * f1.Denominator + f1.Numerator) * f2.Denominator; int num2 = (f2.WholeNum * f2.Denominator + f2.Numerator) * f1.Denominator; int num = num1 + num2; int denom = f1.Denominator * f2.Denominator; Fraction newFrac = new Fraction(num, denom); newFrac.Reduce(); return newFrac; } public void Reduce() { int gcd; int y; if(numerator >= denominator) { wholeNum += numerator / denominator; numerator = numerator % denominator; } gcd = 1; for(y = numerator; y > 0; --y) { if(numerator % y == 0 && denominator % y == 0) { gcd = y; y = 0; } } numerator /= gcd; denominator /= gcd; } public string FracString() { string fracString; if(WholeNum == 0 && Numerator == 0) fracString = "0"; else if(WholeNum == 0) fracString = Numerator + "/" + Denominator; else if(Numerator == 0) fracString = "" + WholeNum; else fracString = WholeNum + " " + Numerator + "/" + Denominator; return fracString; } }