Decompose Using Unit Fractions

Write 5/7 as a unit fraction. 

• 1/7 + 1/7 + 1/7 + 1/7 + 1/7

• 1/7 + 1/7 + 1/7 + 1/7 + 1/7 + 1/7 + 1/7 

• 2/7 + 3/7 

• 1/5 + 1/5 + 1/5 + 1/5 + 1/5 + 1/5 + 1/5 

Tags

CCSS.4.NF.B.3B

Decompose 7/10 

• 7/7 + 3/7 

• 6/10 + 4/10

• 5/10 + 2/10 

• 3/10 + 3/10 + 1/10 

Tags

CCSS.4.NF.B.3A

Which describes breaking apart this model?

• 2/3 = 1/3 + 1/3

• 2/3 = 1/3 + 1/2

• 2/3 = 1/3 + 1/3 + 1/3

Tags

CCSS.4.NF.B.3A

To ​ (a)   a fraction means to break apart.

• decompose

• compose

• equal parts

• numerator

• denominator

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

BONUS QUESTIONS: To break down fractions into smaller units means to​ (a)  

• unit fractions

• decompose

• compose

Tags

CCSS.4.NF.B.3B

• 
• 
• 

Tags

CCSS.4.NF.B.3A

Decompose 5/12 into the sum of its unit fractions.

• 1/5+1/5+1/5+1/5+1/5 = 5/12

• 1/12+1/12+1/12+1/12+1/12 = 5/12

• 1/5+1/12+1/5+1/12+1/5 = 5/12

• 4/12+1/12 = 5/12

Tags

CCSS.4.NF.B.3B

Write the fraction as a sum of unit fractions.

Tags

CCSS.4.NF.B.3B

Tags

CCSS.4.NF.B.3A

• Mrs. Burdick is correct because she did it right. 

• Mrs. Burdick is incorrect because she added it wrong.

Tags

CCSS.4.NF.B.3B