public static Rational operator *(Rational num1, Rational num2)
{
int numer = num1.numerator * num2.GetNumerator();
int denom = num1.denominator * num2.GetDenominator();
Rational result = new Rational(numer, denom);
return result;
}
public static Rational operator -(Rational num1, Rational num2)
{
int commonDenom = num1.denominator * num2.GetDenominator();
int numer1 = num1.numerator * num2.GetDenominator();
int numer2 = num2.GetNumerator() * num1.denominator;
int difference = numer1 - numer2;
Rational result = new Rational(difference, commonDenom);
return result;
}
public static Rational operator +(Rational num1, Rational num2)
{
int commonDenom = num1.denominator * num2.GetDenominator();
int numer1 = num1.numerator * num2.GetDenominator();
int numer2 = num2.GetNumerator() * num1.denominator;
int sum = numer1 + numer2;
Rational result = new Rational(sum, commonDenom);
return result;
}
public static void Main(string[] args)
{
Rational a = new Rational(3, 4);
Rational b = new Rational(4, 5);
Rational c = a + b;
Console.WriteLine(c.StrVal());
Console.WriteLine(c.ToString());
c = b - a;
Console.WriteLine(c.StrVal());
Console.WriteLine(c.ToString());
}