Adding and Subtracting Rationals with Like Bases

Solve and simplify to lowest terms.

• a

• b

• c

• d

Tags

CCSS.7.NS.A.1C

Solve and SIMPLIFY:

15/20 + 3/20

• 18/20

• 45/20

• 10/20

• 9/10

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Solve and SIMPLIFY:

5 1/7 - 2 4/7 =

• 3 4/7

• 3 3/7

• 2 4/7

• 7 5/7

Tags

CCSS.7.NS.A.1C

Tim had 10/12 of a green streamer for a bulletin board. He used 5/12 roll for the border. What fraction of the roll of green streamer does Tim have left?

• 1 3/12

• 5/12

• 5/0

• 15/12

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

1/5 + 1/5 + 1/5 

• 2/5

• 1/5

• 3/5

Tags

CCSS.4.NF.B.3A

3/8 + 2/8

• 5/8

• 1/8

• 5/16

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

5/6 + 1/6

• 6/12

• 6/6 or 1

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is sum of these two fractions?

• 4/8

• 2/8

• 4/6

• 4/12

Tags

CCSS.4.NF.B.3A

What is the difference of 6/8 and 4/8?

• 10/8

• 2/16

• 2/8

• 8/2

Tags

CCSS.4.NF.B.3A

What must you have to add and subtract fractions?

• Common numerators

• Different numerators

• Different denominators

• Common denominators

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2