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Science Lab Pours: Splitting Fractions into Equal Shares

Grade 5 science lab practice dividing a unit fraction by a whole number with fraction bar models and multiplication checks.

Grade 5MathInteractive · Printable

Aligned to5.NF.B.7.a

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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, Short answer

About this worksheet

What students practice

Students divide a unit fraction by a whole number using a fraction bar model.
Students compute quotients of a unit fraction divided by a whole number in real-world problems.
Students use multiplication to check that a unit fraction quotient is correct.

How to use

Use after modeling how to split a unit fraction into equal parts. Have students sketch a bar for each story in the first section and check every answer with multiplication.

Curriculum

Common Core standard covered

5.NF.B.7.a

Divide a unit fraction by a whole number.

Preview

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Science Lab Pours: Splitting Fractions into Equal Shares

Divide a unit fraction by a whole number as the class shares liquids and supplies in the lab.

Use a model

Each fraction bar shows 1 whole. Use the bars, or draw your own, to find each equal share.

Ms. Reyes has 1/2 liter of salt water. She pours it equally into 3 test tubes. The bar is cut into sixths, so the 1/2 liter makes 3 equal parts. The shaded part is the water in one test tube. How much salt water is in each test tube?

1/2 ÷ 3 = liter

Jamal has 1/4 cup of baking soda. He splits it equally between 2 model volcanoes. The bar is cut into eighths, and the shaded part is the baking soda for one volcano. How much baking soda does each volcano get?

1/4 ÷ 2 = cup

Kim splits 1/3 of a jar of vinegar equally among 4 beakers. Which shaded bar shows the fraction of the jar that goes into one beaker?