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Using Rectangles for Fraction Addition and Fraction Expression

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A. Use a rectangle to explain the process of adding 1/4 and 2/3 - Explain your answer.

B. What multiplication problems are represented by each of the following area models? What are the products?
(The 1st area model looks like one big rectangle with fifteen little rectangles in it, and 8 of them are shaded)
(The 2nd area model looks like one big rectangle with 49 little rectangles in it and 21 of them are shaded).

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Solution Summary

The use of rectangles for fraction addition and fraction expression is shown. A diagram is included.

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A. In a big rectangle with 12 little rectangles in it, and 1/4 of them is 12/4=3 ...

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