Question

(1/x)-(1/y)/(y/x^2)-(1/y)

Answer 1

rewrite the numerator with a common denominator

1/x - 1/y = (y - x)/(xy)

similar process for the denominator

the the rule for dividing by a fraction is flip and multiply

look for common factors that can be cancelled.

Answer 2

So I rewrite the numerator and the denominator?

Answer 3

yes....

the denominator is

y/x^2 - 1/y = (y^2-x^2)/(x^2y)

the numerator in this part is the difference of 2 squares... and can be factored.

once you have done that, flip it then multiply by the numerator shown above

you should see some common factors that cancel