Solve:

Question

((3/n)-(2/m))
------------------------
(9m^2)-(4n^2)
-----------------
mn

----- AND / = fraction bars

Answer 1

a/(b/c)=ac/b

((3/n)-(2/m)) mn
*****************
(3m-2n)(3m+2n)

(3m-2m)
*************
(3m-2n)(3m+2n)

1/ (3m+2n)

check my work.