2x^-2y^-2 = 2/x^2y^2 = 2/(2)^2 x (3)2 = 2/4 x 9 = 2/36 = 1/18
Man tbh wth is this at this point just trow that mug out the window
We need to have a picture in order to be able to answer your question...
You can only simplify fractions, and you can only divide fractions when the numerator and the denominator are divisible by the same number ( 15/9)