Adding and Subtracting Fractions

My sister and I ate some of the cookies she made. She ate 3/5 of them and I ate 1/10 of them. How much of the cookies did we eat?

• 1/2 of the cookies
• 7/10 of the cookies
• 4/15 of the cookies

Rachel spent 1/3 of her allowance on a new book and 2/5 of her allowance on some pencils. How much of her allowance did she spend?

• 2/15 of her allowance
• 3/8 of her allowance
• 11/15 of her allowance

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Ms. Eager makes trail mix by combining 1/3 cup of mixed nuts, 1/4 cups of dried fruit, and 1/6 cup of chocolate chips. What is the total amount of ingredients in her trail mix?

• 7/12 cup
• 3/4 cup
• 3/13 cup
• 11/12  cup

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Find the least common denominator (LCD) and write the equivalent fraction for 1/3, 1/5.

• 15, 5/15, 3/15
• 30, 5/30, 3/30
• 10, 3/10, 5/10
• 90, 20/90, 50/90

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

On Friday, 1/6 of band practice was spent trying on uniforms. The band spent 1/4 of practice on marching. The remaining practice time was spent playing music. What fraction of practice time was spent playing music?

• 7/12
• 1/4
• 2/10
• 2/24

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Ms. George is making two batches of muffins for a school picnic. One batch of muffins uses 1/4 cup of oats and 1/3 cup of flour. How much oats and flour does Ms. George need for two batches?

• 1 1/6 cup
• 1 1/12 cup
• 2 2/3 cup
• 2 2/7 cup

Tags

CCSS.7.NS.A.3

What number could be a common denominator for these three fractions?
1/2   and   1/3   and   1/4

• 9
• 8
• 12
• 6

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

Simplify the fraction
15/20

• 5/10
• 3/4
• 2/3
• 1/5

Simplify, if possible.
5 ⅙ - 3 ½ =

• 2 ⅙
• 1 ⅚
• 1 ⅔
• 2 ⅚