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Pizza Night: Join and Separate Fraction Slices worksheet preview

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Pizza Night: Join and Separate Fraction Slices

Grade 4 fraction practice with pizza: add fractions by joining slices of the same pizza and subtract by taking slices away.

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, 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 from the same whole.
  • Students explain why fractions must refer to the same whole before they are added.

How to use

Use after students model fractions with circles or bars. Have them shade or cross out slices on the pictures before they write each sum or difference.

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

Pizza Night: Join and Separate Fraction Slices

Add slices of the same pizza together and take slices away.

Join the slices

Each pizza is cut into equal slices. Add the parts of the same pizza.

1.
A pizza is cut into 8 equal slices. The shaded slices show what Kai and Nadia eat.


Kai eats 2/8 of the pizza. Nadia eats 3/8 of the same pizza.
2/8 + 3/8 =  

2.
Ivy makes a veggie pizza cut into 6 equal slices. She puts peppers on 2 slices and mushrooms on 3 different slices. The other slices are plain cheese.

2/6 + 3/6 =  , so that much of the pizza has peppers or mushrooms.
The plain cheese part is   of the pizza.

3.
Leo adds 1/4 + 2/4 of the same pizza and gets 3/8. Which sentence shows the right way to think about it?
  • A. Leo should get 2/8, because 1 × 2 = 2.
  • B. Leo is right. You add the top numbers and add the bottom numbers.
  • C. The slices are still fourths, so 1 fourth + 2 fourths = 3 fourths, or 3/4.
  • D. Leo should get 1/4, because 2/4 − 1/4 = 1/4.

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