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May 22, 2015

Homework Help: math

Posted by Dar on Sunday, December 9, 2012 at 11:24pm.

I need to find the sum of 2/5 and 3/4. The LCD is 20 so I did 2x4=8 and 3x5=15. so I got 8/20 + 15/20 = 23/20, but this does not match any of the answers I have to pick from. What am I doing wrong?

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