// Rationa multiplication
public static Rationa Mult(Rationa a, Rationa b)
{
Rationa c;
c.num = a.num * b.num;
c.den = a.den * b.den;
return(c);
}
// Validate Rationa
public static bool ValidateRationals(Rationa a)
{
if (a.den != 0)
{
return(true);
}
else
{
return(false);
}
}
public static void Main(string[] args)
{
Rationa a;
Rationa b;
Rationa c;
// Inicialization
a.num = 1;
a.den = 2;
b = new Rationa(3, 4);
Console.Write("Rationals typed:\na = ");
PrintRationa(a);
Console.Write("\nb = ");
PrintRationa(b);
// Validating both rationals
if (ValidateRationals(a) && ValidateRationals(b))
{
Console.WriteLine("\n\nOPERATIONS");
// Addition
c = Add(a, b);
Console.Write("\na + b = ");
PrintRationa(c);
// Subtraction
c = Sub(a, b);
Console.Write("\na - b = ");
PrintRationa(c);
// Multiplication
Console.Write("\na * b = ");
c = Mult(a, b);
PrintRationa(c);
}
else
{
Console.WriteLine("\n\nFractions entered are invalid");
}
}
// Print Rationa
public static void PrintRationa(Rationa a)
{
Console.Write($"{a.num}/{a.den}");
}
