Microlesson: Multiplying Fractions with Models

• bigger

• smaller

Answer explanation

1/3 is a number less than 1, so multiplying anything by 1/3 will make the value smaller.

Tags

CCSS.5.NF.B.5B

How many rectangles did Mr. J cut the area model into?

Tags

CCSS.3.MD.C.5A

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Answer explanation

One side of the rectangle should be cut into 5 pieces and one shaded on. the other side should be cut into 6 pieces and 2 shaded in.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

Mathematical Equivalence

ON

Tags

CCSS.5.NF.B.7A

CCSS.5.NF.B.7C

Which problem does the model represent?

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Mathematical Equivalence

ON

Answer explanation

2 out of 25 rectangles were shaded in twice.

Tags

CCSS.3.OA.A.2

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Tags

CCSS.4.NF.A.1

CCSS.5.NF.B.5B

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Tags

CCSS.5.NF.B.4A

Which problem does the model represent?

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

Which equation matches the model shown above?

(answers are simplified!)

• 3 x 3/4 = 2 1/4

• 3/4 x 3/4 = 9/16

• 2/3 x 4 = 2 2/3

• 3/4 x 2/3 = 1/2

Tags

CCSS.5.NF.B.4A