Worksheet

Equivalent Fractions in Recipes

Grade 3 equivalent fractions practice with recipes: use fraction bars, circles, and number lines to find equal fractions and explain why.

Grade 3MathInteractive · Printable

Aligned to3.NF.A.3.b

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What’s included

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

Details

Format: Interactive · Printable
Grade: Grade 3
Subject: Math
Question types: Fill in the blank, Multiple choice, Matching, Circle the answer, Short answer

About this worksheet

What students practice

Students use fraction bars, circles, and number lines to show that two fractions are equivalent.
Students find a missing numerator or denominator to make simple equivalent fractions.
Students explain why two fractions are equal by looking at the size and number of equal parts.

How to use

Use after students compare fraction strips. If you can, let them fill measuring cups with rice or water to check the recipe amounts before they write each equation.

Curriculum

Common Core standard covered

3.NF.A.3.b

Recognize and make simple equivalent fractions and explain why they are equal.

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Name Date

Equivalent Fractions in Recipes

Find recipe amounts that are the same, even with different fraction names.

Same amount, different names

The models in each problem are the same size. The shaded parts show the same amount.

Kai's recipe needs 1/2 cup of milk. He only has a 1/4 cup scoop.

1/2 = /4, so Kai fills the 1/4 cup scoop times.

Rosa's pancake recipe uses 1/3 cup of oil. She measures it with a 1/6 cup scoop.

1/3 = /6

Ben's muffin recipe uses 3/4 cup of flour. This bar shows 3/4.

Which bar shows the same amount? All the bars are the same size.

Both number lines go from 0 to 1. The top line is split into thirds, and its point is at 2/3. The bottom line is split into sixths, and its point is at the same place.

2/3 = /6

Match each recipe amount to the amount that is equal to it.

1/2 cup
1/3 cup
2/3 cup
3/4 cup

A. 2/6 cup
B. 6/8 cup
C. 4/8 cup
D. 4/6 cup

Find the missing number

Write the missing numerator or denominator so the two fractions are equal.

Lily's smoothie recipe needs 1/2 cup of yogurt. She has a 1/8 cup scoop. Both number lines go from 0 to 1. The top line is split into halves and the bottom line is split into eighths. Both points are at the same place.

1/2 = /8

Ty's soup recipe needs 2/4 cup of beans. He wants to use one scoop that holds the same amount.

2/4 cup = 1/ cup

Lena's bread recipe needs 1/4 cup of honey. She measures it with a 1/8 cup scoop.

1/4 = /8

2/6 = /3

10.

4/6 = 2/

11.

6/8 = 3/

12.

A cookie recipe needs 1/2 cup of sugar. Circle every amount that is the same as 1/2 cup.

2/4 cup1/4 cup3/6 cup2/3 cup4/8 cup3/8 cup

Explain your thinking

Think about the size of the parts and how many parts there are.

13.

Maya says 2/3 cup and 4/6 cup are the same amount. Which answer is correct?

A. They are not the same, because 4/6 has bigger numbers.
B. They are the same, because each third can be cut into 2 equal sixths, so 2 thirds make 4 sixths.
C. They are not the same, because 1/6 cup is smaller than 1/3 cup.

14.

Theo's recipe needs 3/4 cup of water. He only has a 1/8 cup scoop. He says he should fill the scoop 3 times because the recipe says 3/4. Is Theo right? Explain how you know.