WorksheetPremium

Fold It Again: Paper Strip Equivalent Fractions

Grade 4 equivalent fractions with folded paper strips: see why multiplying the top and bottom by the same number keeps the amount the same.

Grade 4MathInteractive · Printable

Aligned to4.NF.A.1

Buy this worksheet: $1.50

Or unlock every Premium worksheet with Premium

PrintUnlock to print

Answer keyUnlock to see answers

Assign to classUnlock to assign with a class 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 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 use folded fraction strips to show that a fraction equals (n × a)/(n × b).
Students multiply the top and bottom of a fraction by the same number to write an equivalent fraction.
Students explain why adding the same number to the top and bottom does not make an equivalent fraction.

How to use

Give each student a paper strip to fold during the first section. Ask them to tell how the number of parts and the size of each part change with every fold.

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

OwlSheets.com

Name Date

Fold It Again: Paper Strip Equivalent Fractions

Fold paper strips to see why equivalent fractions are equal.

Fold and see

Each paper strip is 1 whole. When you fold it, every part is cut into the same number of equal pieces.

Leo shades 2/3 of a paper strip.Then he folds the strip in half, so each third is cut into 2 equal pieces.

Now the strip has equal parts, and of the parts are shaded.

Mira shades 3/4 of a strip. Then she folds it so each fourth is cut into 3 equal pieces.

3/4 = (3 × 3)/(4 × 3) = /

Leo's strip showed 2/3 before he folded it in half and 4/6 after. Why is 2/3 of the strip the same amount as 4/6 of the strip?

A. Folding adds 2 to the top number and 2 to the bottom number.
B. Folding makes each part 2 times bigger.
C. Each part is cut into 2 pieces, so there are 2 times as many shaded parts and 2 times as many parts in all, but the shaded paper does not change.
D. The number of shaded parts stays the same after folding.