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Adding and Subtracting fractions with Like denominators quiz - Printable Math Worksheets 4th Grade - Wayground

Adding and Subtracting fractions with Like denominators quiz

Nancy Baldomino

Created by Nancy Baldomino

12 questions

4th Grade

Math

Updated Sept 2026

This Grade 4 mathematics worksheet gives students focused practice adding and subtracting fractions with like denominators. Across 12 multiple-choice questions, students add or subtract numerators while keeping denominators unchanged, simplify results such as 6/10 to 3/5, and apply the skill to a cake-sharing word problem. The items also check students’ understanding of the rule behind the procedure, not just their ability to calculate. Use this worksheet to reinforce fraction computation, review simplification, or check whether students can distinguish correct fraction operations from common distractors. It works well for independent practice, a math-center activity, or a quick formative assessment after direct instruction. This is a free printable worksheet with a complete answer key, helping teachers review student understanding of like-denominator fraction operations efficiently.

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Adding and Subtracting fractions with Like denominators quiz

Total questions: 12

Name
Class
Date
1.
Add 4/6 + 2/6=?
a)
1
b)
5/6
c)
6/12
2.
2/3 - 1/3
a)
1/3
b)
2/1
c)
2/0
d)
1/9
3.
Add 2/7 + 3/7= ?
a)
4/7
b)
5/7
c)
5/14
4.

Choose the BEST answer. (Simplify!)


5/10 + 1/10 = ?

a)

10/10

b)

6/10

c)

3/10

d)

3/5

5.

Choose the BEST answer! (Simplify!)


4/6 - 1/6 = ?

a)

5/6

b)

3/6

c)

1/2

d)

5/12

6.

Choose the BEST answer! (Simplify!)


Kayla ate 1/6 of the birthday cake and Jim ate 3/6 of the cake. How much cake did they take in total?

a)

6/6

b)

2/6

c)

2/3

d)

4/6

7.

We add or subtract the _____________ when doing addition or subtraction with fractions.

a)

numerators

b)

denominators

c)

division signs

d)

nouns

8.

We DO NOT add or subtract the _____________ when doing addition or subtraction with fractions.

a)

numerators

b)

denominators

c)

nouns

d)

addition signs

9.

Choose the BEST answer! (Simplify!)


2/12 + 3/12 = ?

a)

5/12

b)

5/24

c)

6/12

d)

1/4

10.

Choose the BEST answer! (Simplify!)


10/8 - 2/8 = ?

a)

7/8

b)

1

c)

12/8

d)

4/8

11.

Choose the BEST answer! (Simplify!)


13/14 - 11/14 = ?

a)

1/7

b)

2/14

c)

24/14

d)

1 and 10/14

12.

13 + 13\frac{1}{3}\ +\ \frac{1}{3}  

a)

23\frac{2}{3}  

b)

12\frac{1}{2}  

c)

26\frac{2}{6}  

d)

24\frac{2}{4}  

WaygroundAnswer Key

Adding and Subtracting fractions with Like denominators quiz

Total questions: 12

1.
a) 1
2.
a) 1/3
3.
b) 5/7
4.
d)

3/5

5.
c)

1/2

6.
c)

2/3

7.
a)

numerators

8.
b)

denominators

9.
a)

5/12

10.
b)

1

11.
a)

1/7

12.
a)

23\frac{2}{3}  

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FAQs

What does this adding and subtracting fractions worksheet help Grade 4 students learn?

This Grade 4 worksheet helps students add and subtract fractions with like denominators by operating on the numerators, retaining the common denominator, and simplifying the result when needed. Its 12 multiple-choice items include computation, rule-identification questions, and a cake-sharing word problem, so students practise both the procedure and its application.

How can I use this worksheet to teach adding and subtracting fractions with like denominators?

First model how to combine or compare the numerators while keeping the like denominator, then demonstrate simplifying the resulting fraction. Have students explain why choices such as adding denominators are incorrect before completing the multiple-choice items, and use the cake problem to connect the calculation to a real quantity.

What mistakes should I watch for when students complete this fractions worksheet?

Watch for students adding or subtracting denominators, choosing an unsimplified fraction when a reduced form is offered, or changing the denominator during a like-denominator calculation. Students may also confuse addition and subtraction in the word problem or overlook that results such as 10/8 − 2/8 must be simplified.

How do I assign and grade this fractions worksheet?

The worksheet is available as a printable PDF and as a digital quiz on Wayground, and it includes a complete answer key for the 12 multiple-choice questions. For printable submissions, you can scan student work with the Wayground for Teachers app to support grading and review.

How can I differentiate this like-denominator fractions worksheet for my students?

In the worksheet’s Advanced Settings, adjust font spacing or choose a larger font size to make the fraction expressions and multiple-choice options easier to read. You can also enable a dyslexia-friendly font or translate the worksheet into another language while keeping its fraction computation and simplification format.

Where can I find more worksheets like this on Wayground?

Wayground offers a broad collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.

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