public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
if (!(obj is Fraction other))
{
return(false);
}
var lcdOperator = new Lcd();
var lcd = lcdOperator.Execute(Denominator, other.Denominator);
return((Numerator * (long)lcd / (long)Denominator) ==
(other.Numerator * (long)lcd / (long)other.Denominator));
}