static int CommonRationals(Rational a, Rational b, out int newA, out int newB)
{
if (a.Denominator == b.Denominator)
{
newA = a.Numerator;
newB = b.Numerator;
return(a.Denominator);
}
else
{
int lcm = Functions.LCM(a.Denominator, b.Denominator);
newA = a.Numerator * (lcm / a.Denominator);
newB = b.Numerator * (lcm / b.Denominator);
return(lcm);
}
}