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Fence Painting Day: Join and Separate Board Fractions

Grade 4 fraction practice on a fence painting day: add by joining boards and subtract by separating parts of the same whole fence.

Grade 4MathInteractive · Printable

Aligned to4.NF.B.3.a

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What’s included

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

Details

Format: Interactive · Printable
Grade: Grade 4
Subject: Math
Question types: Fill in the blank, Multiple choice, Matching, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

Students add fractions with like denominators by joining parts of the same whole.
Students subtract fractions with like denominators by separating parts of the same whole.
Students explain why the denominator stays the same when parts of one whole are joined.

How to use

Use after students can name unit fractions. Let them shade or cross out boards on the fence pictures to show each joining and separating step.

Curriculum

Common Core standard covered

4.NF.B.3.a

Understand adding and subtracting fractions as joining and separating parts of the same whole.

Preview

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Name Date

Fence Painting Day: Join and Separate Board Fractions

Add and subtract parts of one fence made of equal boards.

Join the parts

Each fence is made of equal boards. Add to find how much of the fence is painted.

The garden fence has 8 equal boards. Ava paints 3 boards blue. Then Jin paints 2 more boards blue.

Each board is /8 of the fence.
3/8 + 2/8 = /8 of the fence is blue.

The front fence has 10 equal boards. On Monday the class paints 4/10 of the fence. On Tuesday they paint 3/10 of the same fence. How much of the fence is painted now?

4/10 + 3/10 = of the fence

Nia paints 1/5 of the fence in the morning. She paints 2/5 of the same fence after lunch. Which equation shows how much of the fence Nia painted?