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October 20, 2014

October 20, 2014

Posted by **ttuuffyy** on Thursday, March 14, 2013 at 5:09pm.

- fractions -
**Ms. Sue**, Thursday, March 14, 2013 at 5:12pm2 2/8 + 3 7/8 = 5 9/8 = 6 1/8 mile

6 1/8 + 6 1/8 = ?

- fractions -
**ttuuffyy**, Thursday, March 14, 2013 at 5:16pmHow did you figure that out.Iam trying to explain to my 4 th grader

- fractions -
**Ms. Sue**, Thursday, March 14, 2013 at 5:20pmWhen we add or subtract fractions, we must have a common denonimator.

2 1/4 = 2 2/8

When I added the two fractions, I added the whole numbers and the numerators. That is 5 9/8. But since 9/8 is larger than 1, I simplified the fraction to 6 1/8.

Which part doesn't the child understand?

- fractions -
**ttuuffyy**, Thursday, March 14, 2013 at 5:22pm9/8 when you simplified it.

- fractions -
**Ms. Sue**, Thursday, March 14, 2013 at 5:27pmIf you divide two pizzas into 8ths, you have 8 in one pizza and 8 in the other pizza. 9/8 is all of the pieces in one plus one piece from the other.

You might draw a picture for the child showing the two pizzas.

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