SOLUTION: what is the answer to 5c/8m-7m/c?

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Question 23421: what is the answer to 5c/8m-7m/c?
Answer by rapaljer(4551) About Me  (Show Source):
You can put this solution on YOUR website!
What did you want to do, find a common denominator and subtract the fractions?
%28%285c%29%2F%288m%29%29-%28%287m%29%2Fc%29

The LCD = 8mc

Multiply the first fraction by c%2Fc and the second fraction by +%288m%29%2F%288m%29%29+.
%28%285c%29%2F%288m%29%29%2A%28c%2Fc%29-%28%287m%29%2Fc%29%2A%28%288m%29%2F%288m%29%29+
%285c%5E2-56m%5E2%29%2F%28+8mc%29+

R^2 at SCC