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December 20, 2014

December 20, 2014

Posted by **sam** on Wednesday, July 3, 2013 at 3:38pm.

- math -
**Ms. Sue**, Wednesday, July 3, 2013 at 3:56pmTo add and subtract fractions, they need to have the same denominator.

9/10 - ?= 17/30

- x = 17/30 - 9/10

-x = 17/30 - 27/30

x = 10/30 = 1/3

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

3/10 + 4/5 = ?

3/10 + 8/10 = 11/10 = 1 1/10

http://www.math.com/school/subject1/lessons/S1U4L3GL.html

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