Fractions Models for Adding/Subtracting

Three sisters write a part of a short story. The first sister writes 1/3 of the story, the second sister writes 1/6 of the story, and the last sister writes 1/12 of the story. How much of the story have the sisters completed so far?

• 3/12

• 1/2

• 7/12

• 2/3

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Marlon watched a movie 1 8/9 hours long. Jessie watched a movie 2 2/7 hours long. How much longer was Jessie's movie than Marlon?

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

2 1/2 - 1 4/11

Tags

CCSS.7.NS.A.1C

5 3/8 -2 7/8

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Subtract 5/6 from 3

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Cara and Marcus shared a candy bar. The models are shared to show the fraction of the candy bar each of them ate. What fraction of the candy bar did Cara and Marcus eat altogether?

Tags

CCSS.4.NF.B.3A

The shaded part of the model represents a fraction. Another fraction was subtracted from the first fraction. Which expression does the model represent?

Tags

CCSS.4.NF.B.3A

When the denominators are not the same, I must find a...

• common numerator

• common denominator

• equivalent fraction

• mixed number

Tags

CCSS.4.NF.A.1

CCSS.5.NF.B.5B

When adding or subtracting fractions, I NEVER add or subtract the...

• numerators

• denominators

• mixed numbers

• equivalent fractions

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

When adding or subtracting fractions, I always add or subtract the...

• numerators

• denominators

• mixed numbers

• equivalent fractions

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D