internal static void Test_Fraction_Mul(Fraction f, Fraction g, Fraction a)
{
Console.WriteLine($"{f} * {g} = {f.Mul(g)}");
Debug.Assert(a.IsEquals(f.Mul(g)));
}
internal static void Test_Fraction_Mul(Fraction f, Fraction g, Fraction a)
{
Console.WriteLine($"{f} * {g} = {f.Mul(g)}");
Debug.Assert(a.IsEquals(f.Mul(g)));
}