Try CalcES Scientific Calculator Online
ExpandNumerator
ExpandNumerator(expr)expands the numerator of
expr.
Examples
>> ExpandNumerator((x+y)*(x-y)/((x+1)*y))(x^2-y^2)/((1+x)*y)ExpandNumerator(expr)expands the numerator of
expr.
>> ExpandNumerator((x+y)*(x-y)/((x+1)*y))(x^2-y^2)/((1+x)*y)