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April 17, 2014

April 17, 2014

Posted by **sarah** on Tuesday, February 19, 2013 at 7:54pm.

- math -
**JJ**, Tuesday, February 19, 2013 at 7:55pmYou need to get a common denominator of

35. Multiply the top and bottom of 3/5 by 7 and multiply the top and bottom of 4/7 by 5. Then, keep the denominator and subtract the numerators to give you the difference in weights.

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