public Fraction64(IFraction fraction)
{
long numerator, denominator;
_wholeNumber = FractionUtil.GetNormalizedRational64(FractionUtil.ToInt64(fraction.WholeNumber), FractionUtil.ToInt64(fraction.Numerator), FractionUtil.ToInt64(fraction.Denominator, 1), out numerator, out denominator);
_numerator = numerator;
_denominator = denominator;
}