Add/Subtract Fractions

How can you get 3/4?

• 1/4 + 1/4
• 2/4 + 1/4
• 1/4 + 1/4 + 1/4 + 1/4
• 3/4 + 1/4

Tags

CCSS.4.NF.B.3A

Decompose the following fraction:
6/10

• 1/6 + 5/6
• 2/10 + 4/10
• 3/10 + 2/10
• 1/10 + 1/10 + 3/10

Tags

CCSS.4.NF.B.3B

Decompose the following fraction:
5/8

• 1/8 + 1/8 + 1/8 + 2/8
• 3/8 + 2/3
• 1/8 + 3/8
• 8/2 + 8/3

Tags

CCSS.4.NF.B.3B

True or False?
A unit fraction names 1 equal part of a whole. 

• True
• False

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

What is the sum of unit fractions for this pictorial model?

• 1/2 + 1/2= 2/2
• 1/4 + 1/4= 2/4
• 1/4 + 1/4= 2/8
• 1/3+ 1/3= 2/3

Tags

CCSS.4.NF.B.3A

1/4  + 1/4 + 1/4 = ?

• 2/4
• 3/4
• 4/5
• 2/3

Tags

CCSS.4.NF.B.3A

What does decompose mean?

• to put together

• to combine

• to add

• to break apart

Tags

CCSS.L.3.4C

CCSS.RF.3.3A

CCSS.RF.3.3B

CCSS.RF.4.3A

CCSS.RF.5.3A

What does $\frac{1}{5}+\frac{1}{5}+\frac{1}{5}+\frac{1}{5}$  equal?

•  $\frac{5}{5}$  

•  $\frac{4}{20}$  

•  $\frac{5}{20}$  

•  $\frac{4}{5}$  

Tags

CCSS.4.NF.B.3A

Using the model, create an equation that uses unit fractions for the fraction strip.

• $\frac{1}{4}+\frac{1}{4}+\frac{1}{4}+\frac{1}{4}=\frac{4}{4}$

• $\frac{1}{6}+\frac{1}{6}+\frac{1}{6}+\frac{1}{6}=\frac{4}{6}$

• $\frac{2}{6}+\frac{2}{6}=\frac{4}{6}$

• $\frac{1}{6}+\frac{1}{6}+\frac{1}{6}+\frac{1}{6}+\frac{1}{6}+\frac{1}{6}=\frac{6}{6}$

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