Worksheet

Aquarium Feeding Time: Splitting Unit Fractions

Grade 5 aquarium-themed practice dividing a unit fraction by a whole number with stories, a fraction bar model, and multiplication checks.

Grade 5MathInteractive · Printable

Aligned to5.NF.B.7.a

Play online Play as a game

PrintLetter-size worksheet Answer keyPrintable answers

Assign to classAssign to your classes, or get a join code

What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
12 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 5
Subject: Math
Question types: Fill in the blank, Multiple choice, Matching, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

Students divide a unit fraction by a whole number to solve sharing stories.
Students use a fraction bar model and multiplication to explain a quotient such as 1/3 ÷ 4 = 1/12.
Students match a division expression like 1/4 ÷ 3 to a story that fits it.

How to use

Use after modeling unit fraction division with fraction bars. Ask students to check each quotient by multiplying it by the whole number to get back the unit fraction.

Curriculum

Common Core standard covered

5.NF.B.7.a

Divide a unit fraction by a whole number.

Preview

OwlSheets.com

Name Date

Aquarium Feeding Time: Splitting Unit Fractions

Divide a unit fraction by a whole number to share food fairly.

Feeding Stories

Each amount is shared equally. Write the size of one share as a fraction.

Keeper Maria has 1/2 cup of fish flakes. She shares it equally among 4 tanks. How much does each tank get?

1/2 ÷ 4 = cup

Keeper Tomás has 1/3 of a bucket of shrimp. He splits it equally between 2 sea otters. What part of the bucket does each otter get?

1/3 ÷ 2 = of the bucket

The glass tunnel under the shark tank is 1/4 mile long. It is made of 5 equal sections. How long is each section?

1/4 ÷ 5 = mile

Three sea turtles share 1/5 pound of lettuce equally. How much lettuce does each turtle get?

pound

Keeper Jin pours 1/6 liter of coral food equally into 2 coral tanks. How much coral food goes into each tank?

liter

Models and Checks

Use the model or a multiplication fact to help you.

The bar is one tray of crab food. The shaded part is 1/3 of the tray. Keeper Dana splits the shaded 1/3 equally among 4 crabs. Picture cutting every third of the bar into 4 equal pieces.

The whole bar now has equal pieces.
Each crab gets 1/3 ÷ 4 = of the tray.

Which multiplication equation checks that 1/2 ÷ 5 = 1/10?

A. 1/2 × 5 = 5/2
B. 1/10 × 5 = 1/2
C. 1/10 × 2 = 1/5
D. 1/10 × 1/2 = 1/20

Match each division to its quotient.

1/4 ÷ 2
1/5 ÷ 5
1/2 ÷ 8
1/3 ÷ 7

A. 1/16
B. 1/21
C. 1/8
D. 1/25

Each sea horse gets 1/18 of a scoop of food. Circle every division that equals 1/18.

1/9 ÷ 21/6 ÷ 21/9 ÷ 91/6 ÷ 31/3 ÷ 31/2 ÷ 9

Think It Through

Choose the best answer, sort the quotients, and write your own story.

10.

Which story can be solved with 1/4 ÷ 3?

A. A keeper has 3 pounds of fish. She gives each penguin 1/4 pound. How many penguins can she feed?
B. A keeper feeds 3 tanks. Each tank gets 1/4 pound of krill. How much krill does she use in all?
C. A keeper has 1/4 pound of krill. She splits it equally among 3 jellyfish tanks. How much krill does each tank get?
D. A keeper has 1/4 pound of krill. She gets 3 more pounds. How much krill does she have now?