I need help with these 2 problems please. It's been a while so I need some brushing up

Question

1)Subtact & Simplify
4-v/v-6
-2v-5/-v

2)Add
2/55u
+11/25u

Answer 1

I will have to guess what you might mean because you used no parentheses.

(4-v)/(v-6) - (2v-5)/(-v )

(4-v)/(v-6) + (2v-5)/(+v )

multiply by LCD which is
v(v-6)

[(4v-v^2) + (v-6)(2v-5)]/(v^2-6v)

[ 4v -v^2 + 2v^2 -17 v + 30 ]/(v^2-6)

[ v^2 -13 v +30 ] / (v^2-6)