SOLUTION: Divide and Simplify. -20+5z/3 / 121z-484/9. Can you please disregard the similar problem,this is the actual problem. Thanks

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Divide and Simplify. -20+5z/3 / 121z-484/9. Can you please disregard the similar problem,this is the actual problem. Thanks      Log On


   

Question 366045: Divide and Simplify. -20+5z/3 / 121z-484/9. Can you please disregard the similar problem,this is the actual problem. Thanks
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
%28%28-20%2B5z%29%29%2F3
-----------
%28%28121z-484%29%29%2F9
:
Invert the dividing fraction and multiply
%28%28-20%2B5z%29%29%2F3 * 9%2F%28%28121z-484%29%29
:
look for common factors which will greatly simplify things here
%285%28-4%2Bz%29%29%2F3 * 9%2F%28121%28z-4%29%29
the same as:
%285%28z-4%29%29%2F3 * 9%2F%28121%28z-4%29%29
:
You can cancel out: z-4, 3 into 9, leaving
5 * 3%2F121 = 15%2F121