Question

v+5 v
--- + --- add and simplify if possible
v v+5

Answer 1

common denominator is v(v+5)

Answer 2

as said above
common denominator=v(v+5)
first fraction can be written as (v+5) (v+5) (v+5)^2
---- x ---- = -------
v (v+5) v(v+5)

and similarly the second fraction as v^2
----
(v+5)v
adding the two= (v+5)^2 v^2 v^2 + 25 + 10v + v^2
------- + ----- = -------------- ------
v(v+5) v(v+5) v(v+5) v(v+5)

=2{v}^2+ 25 + 10v
---------------
v(v+5)