Add and Subtract Fractions

What must you have to add and subtract fractions?

• Common numerators
• Different numerators
• Different denominators
• Common denominators

Tags

CCSS.7.NS.A.1C

Is this a correct answer?

• Yes, the student correctly added.
• No, you cannot add unlike denominators
• No, 5 + 7 is not 12
• No, 2 + 3 is not 5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

2/5 + 3/10

• 7/10
• 5/10
• 1/2
• 5/15

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

8/9 - 1/3 = 

• 7/6
• 5/9
• 2/3
• 8/27

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Sally is painting her house. She used 1/8 of a gallon of paint in her bathroom, and 2/6 of a gallon of paint in her bedroom. How much paint did she use in all?

• 11/24
• 3/14
• 3/24
• 11/14

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Tim has a board that is 5/6 feet long. He painted 2/18 feet of his board last night. How much more does Tim have left to paint?

• 13/18
• 7/24
• 7/18
• 3/7

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

3/5 + 1/4 = 

• 5/20
• 12/20
• 7/20
• 17/20

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the least common denominator for 1/3 and 3/4?

• 6
• 4
• 3
• 12

Tags

CCSS.5.NF.A.1

What is the least common denominator for 6/7 and 1/2?

• 12
• 14
• 7
• 6

Tags

CCSS.5.NF.A.1

Which fraction is equivalent to 1/2?

• 10/19
• 10/17
• 10/11
• 10/20

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

CCSS.3.NF.A.3A