Question 156404
(y^2)/(y-4)-4/(y-4)
(y^2-4)/(y-4) answer.

(y^3-5y)/6y-(y^3+y+3)/6y
(y^3-5y-y^3-y-3)/6y
(-6y-3)/6y 
-3(2y+1)/6y
(2y+1)/-2y 
-(2y+1)/2y answer.