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Visualizing Addition of Dissimilar Fractions with and Without Regrouping

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  • Feb. 2013
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Visualizing Addition of Dissimilar Fractions Without and With Regrouping
Objective: Visualize addition of dissimilar fractions without and with regrouping.

Review

A. Find the sum.
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1) 7 2.) 10 3.) 11 4.) 7 12 12 14 10 + 5 + 6 + 9 + 5 12 12 14 10

Read the Problem.
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Mother has one whole cake. First she sliced 1 and then 1 of the cake. What part of the cake did she slice? 2 4 Let’s solve the problem following the steps in problem solving.

1. What is asked for?
The part of the cake that was sliced.
2. What are the given data?
1 was the first sliced , and 1 was the second sliced 2 4 3. What is the mathematical sentence?

1 + 1 = n
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2 4
1
4
1
2

1
8
1
8

4. So 1 + 1 = 3
2 4 4

* How can we add fractions if they are dissimilar?
* Change the fractions to similar then add.

A....