SOLUTION: 7a/15b-2b/5

Algebra ->  Exponents -> SOLUTION: 7a/15b-2b/5      Log On


   

Question 40283: 7a/15b-2b/5
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Let us convert the denominator of the second fraction to match the first one...then combine..so we have
7a/15b - 2b/5 =
7a/15b - (2b/5)(3b/3b) =
7a/15b - 6b^2/15b =
(7a - 6b^2) / 15b