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July 25, 2014

July 25, 2014

Posted by **zavier** on Sunday, August 21, 2011 at 8:34pm.

- math -
**Ms. Sue**, Sunday, August 21, 2011 at 8:35pmFirst, what is the common denominator for 7/10 and 3/4?

After you post that answer, I'll help you from there.

- math -
**zavier**, Sunday, August 21, 2011 at 8:38pm29/20

- math -
**Ms. Sue**, Sunday, August 21, 2011 at 8:49pmYes. 20 is the common denominator.

7/10 = 14/20

3/4 = 15/20

You need to subtract 5 15/20 from 9 14/20.

We need to make the top fraction larger. So we to subtract 1 from the whole number and add 20/20 to the fraction.

9 14/20 = 8 34/20

8 34/20 - 5 15/20 = 3 19/20

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