private static void checkInitialization(Fraction one, Fraction two)
{
one.checkInitialization();
two.checkInitialization();
}
private static void getCommonDenominatorFraction(Fraction one, Fraction two, out Fraction _one, out Fraction _two)
{
long denominator = one.Denominator * two.Denominator;
_one = new Fraction(one.Numerator * two.Denominator, denominator);
_two = new Fraction(two.Numerator * one.Denominator, denominator);
}