public static Fraction operator -(Fraction x, Fraction y) //Subtraction operation
{
int ix, iy, lcd, z;
if (x.D == 0)
{
return(y);
}
else if (y.D == 0)
{
return(x);
}
ix = x.W * x.D + x.N;
iy = y.W * y.D + y.N;
x = new Fraction(ix, x.D);
y = new Fraction(iy, y.D);
lcd = LCF(x.D, y.D);
x = x.Denominator(lcd);
y = y.Denominator(lcd);
z = x.W + y.W;
return(new Fraction(x.N - y.N, lcd).Normalize());
}
