simplify complex fractions d

Question

-4+y / 3+y

4 28

Answer 1

rewrites it as

y-4 y+3

----- divided by ------------

4 28

division of fractions requires KFC: keep, flip, change

y-4 28

---- * -----------

4 y+3

28 cancels 4 by a factor of 7

7(y-4)/(y+3) provided y is not -3