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K-5 Grade 5 Unit 6 Lesson 10

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Lesson 10

Warm-up Activity 1 Activity 2

Unit 6, Lesson 10

All Sorts of Denominators

Grade 5

Warm-up

How many do you see? How do you see them?

Two diagrams, both squares with length and width, 1. Each partitioned into 3 rows of 4 of the same size rectangles. On left, 8 rectangles shaded. On right, 3 rectangles shaded.

Activity 1

Find the value of each expression. Show your thinking. Organize your work so it can be followed by others.

Activity 2

Here is Lin’s strategy for finding the value of : “I know is a common denominator so I’ll use that.” Does Lin’s strategy for finding a common denominator work? Explain or show your reasoning. Then find the value of .
Find the value of each expression.