Fraction x Whole Number - Breaking into 1s 5-51

Find a fraction of a whole number by breaking numbers into 1s. What's 1/3 x 2? Think of 2 as 1+1. Draw a bar model or number bond to see 1/3 x (1+1) = (1/3 x 1)+(1/3 x 1) = 1/3+1/3 = 2/3, or 2 x 1/3. Since 1/3 x 2 = 2 x 1/3, transition to using the commutative property, when ready. What's 4/5 x 2? It's 2 x 4/5 = 8/5 = 1 3/5.

 
 

1. Learn

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Find a fraction of a whole number by breaking numbers into 1s. What's 1/3 x 2? Think of 2 as 1+1. Draw a bar model or number bond to see 1/3 x (1+1) = (1/3 x 1)+(1/3 x 1) = 1/3+1/3 = 2/3, or 2 x 1/3. Since 1/3 x 2 = 2 x 1/3, transition to using the commutative property, when ready. What's 4/5 x 2? It's 2 x 4/5 = 8/5 = 1 3/5.

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2. Practice

Lesson
5-51
Lesson
5-51
Lesson
5-51
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3. Apply

POD
5-51
POD
5-51
POD
5-51
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