Question 1018181
Identify simplest denominator and raise expressions to higher terms.
Denominator should become {{{x^2y^2}}}.


First step:
{{{((x-y)/x)((xy^2)/(xy^2))+((x^3+y^3)/(xy^2))(x/x)-((x^2+y^2)/x^2)(y^2/y^2)}}}


Next step:
{{{((x-y)xy^2+(x^3+y^3)x-(x^2+y^2)y^2)/(x^2y^2)}}}


Continue from there and finish.