Question 75487
distribute the denominator over the terms of the numerator and cancel where you can...{{{(7x^5y^5/7x^3y^3)-(21x^4y^4/7x^3y^3)+(14x^3y^3/7x^3y^3)}}}


this gives...{{{x^2y^2-3xy+2}}}


you could also solve by factoring the numerator and then cancelling