static void Main(string[] args)
{
Frac a = new Frac(1, 2);
Frac b = new Frac(2, 4);
a.imprime();
b.imprime();
Frac c = new Frac();
c = a + b;
c.imprime();
Frac d = new Frac();
d = a - b;
d.imprime();
Frac e = new Frac();
e = a * b;
e.imprime();
Frac f = new Frac();
f = a / b;
f.imprime();
Console.ReadKey();
}
public static Frac operator /(Frac x, Frac y)
{
Frac result = new
Frac(x.num * y.den, x.den * y.num);
return(result);
}