Adding and Subtracting Fractions with Common Denominator

1/3 + 4/9 =

• 7/9

• 5/9

• 6/9

• 5/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Add the fractions:
7/7 + 2/7 =

• 11/7

• 1  2/7

• 3  2/7

• 1  9/7

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Solve.  2/3 + 7/12

• 3/5

• 9/15

• 15/12

• 5/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the best common denominator for this problem?

• 6

• 8

• 24

• 48

What is the best common denominator for this problem?

• 5

• 2

• 20

• 10

Find equivalent fractions with common denominators for the problem shown above.

• 4/15 and 2/15

• 24/30 and 20/30

• 12/15 and 2/15

• 12/15 and 10/15

Tags

CCSS.3.NF.A.3A

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

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

Aden is helping his dad paint his house. They mixed 5/9 gallons of white paint and 1/6 gallons of blue paint. How many gallons was the mixture in all?

• 6/18 gallons

• 13/18 gallons

• 4/5 gallons

• 1/6 gallons

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Jimmy filled a pitcher 1/2 of the way full with water. Carolyn filled a pitcher of the same size 5/6 of the way full with water. How much more water did Carolyn fill than Jimmy?

• 1/6 more water

• 2/3 more water

• 1/3 more water

• 3/6 more water

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2