SOLUTION: My brain is not working today,please help! Add. Simplify, if possible. 49b/7b-49 + 3b/49b-343.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: My brain is not working today,please help! Add. Simplify, if possible. 49b/7b-49 + 3b/49b-343.      Log On


   

Question 626718: My brain is not working today,please help!
Add. Simplify, if possible.
49b/7b-49 + 3b/49b-343.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Add. Simplify, if possible.
%2849b%29%2F%287b-49%29 + %283b%29%2F%2849b-343%29.
:
Factor both denominators
%2849b%29%2F%287%28b-7%29%29 + %283b%29%2F%2849%28b-7%29%29.
:
Cancel 7; common denominator 49(b-7)
%287b%29%2F%28%28b-7%29%29 + %283b%29%2F%2849%28b-7%29%29 = %2849%287b%29%2B3b%29%2F%2849%28b-7%29%29 = %28343b%2B3b%29%2F%2849%28b-7%29%29 = %28346b%29%2F%2849%28b-7%29%29