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Egg Cartons and Pie Slices at the Farm Stand worksheet preview

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Egg Cartons and Pie Slices at the Farm Stand

Grade 4 equivalent fractions at a farm stand: use pies and egg cartons to see why multiplying top and bottom by the same number works.

Grade 4MathInteractive · Printable

Aligned to4.NF.A.1

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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 4
Subject
Math
Question types
Fill in the blank, Multiple choice, Matching, Sorting, Short answer

About this worksheet

What students practice

  • Students use pie and egg carton models to show that a/b equals (n × a)/(n × b).
  • Students multiply the numerator and denominator by the same number to write equivalent fractions.
  • Students explain that more, smaller parts can show the same amount as fewer, larger parts.

How to use

Use after students have worked with fraction models. Sketch the pies together for the first three problems, then let students finish on their own and share their explanations.

Curriculum

Common Core standard covered

4.NF.A.1

Explain why multiplying the top and bottom of a fraction by the same number gives an equivalent fraction.

Preview

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Name Date

Egg Cartons and Pie Slices at the Farm Stand

Cut every part into the same number of pieces to make an equivalent fraction.

Pies and egg cartons

Look at each model. When every part is cut into the same number of smaller pieces, the amount does not change.

1.
Grandpa Luis cuts an apple pie into 4 equal slices. 3 slices are left.Then he cuts every slice into 2 equal pieces.

3/4 of the pie =  /  of the pie

2.
Grandpa Luis cut every slice into 2 pieces. Show this with multiplication.

3/4 = (3 ×  )/(4 ×  ) = 6/8

3.
After Grandpa Luis cuts every slice into 2 pieces, how big is each new piece compared to one of the old slices?
  • A. 2 times as big
  • B. the same size
  • C. half as big
  • D. 4 times as big

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