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5.NF.1 Add &Sub Mixed numbers & Fractions W' Unlike Denominators - Printable Math Worksheets 5th Grade - Wayground

5.NF.1 Add &Sub Mixed numbers & Fractions W' Unlike Denominators

Kierston Bovastro

Created by Kierston Bovastro

14 questions

5th Grade

Math

Updated Oct 2026

This free printable Grade 5 mathematics worksheet develops fluency with mixed numbers and fractions that have unlike denominators. Students answer 14 multiple-choice questions that ask them to interpret visual models, convert between improper fractions and mixed numbers, and find sums and differences of fractions. Several items reinforce the role of common denominators and the rule that numerators are added or subtracted while denominators are not. The worksheet is designed to help students connect fraction representations with accurate computation, including problems such as 4/8 + 1/3. It can support independent practice, a small-group review, or a quick check of understanding after direct instruction on fraction addition and subtraction. A complete answer key is included, making it easy to review students’ choices and identify whether errors come from interpreting models, converting forms, or combining fractions with unlike denominators.

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5.NF.1 Add &Sub Mixed numbers & Fractions W' Unlike Denominators

Total questions: 14

Name
Class
Date
1.
Question Image
a)

3 253\ \frac{2}{5}

b)

3 153\ \frac{1}{5}

c)

3 353\ \frac{3}{5}

d)

2 1252\ \frac{12}{5}

2.
Question Image
a)

16 5716\ \frac{5}{7}

b)

16 6716\ \frac{6}{7}

c)

17 1717\ \frac{1}{7}

d)

17

3.
Question Image
a)

4 134\ \frac{1}{3}

b)

4 234\ \frac{2}{3}

c)

3 233\ \frac{2}{3}

d)

3 133\ \frac{1}{3}

4.
Which mixed number is represented by the model?

Which mixed number is represented by the model?

a)

2 382\ \frac{3}{8}

b)

1 381\ \frac{3}{8}

c)

2 582\ \frac{5}{8}

d)

2 572\ \frac{5}{7}

5.
Which fraction is represented by the model?

Which fraction is represented by the model?

a)

1924\frac{19}{24}  

b)

2516\frac{25}{16}  

c)

198\frac{19}{8}  

d)

38\frac{3}{8}  

6.

Rewrite the improper fraction as a mixed number.

179\frac{17}{9}  

a)

1 891\ \frac{8}{9}  

b)

1 791\ \frac{7}{9}  

c)

1 231\ \frac{2}{3}  

d)

1 591\ \frac{5}{9}  

7.

Rewrite the improper fraction as a mixed number.
76\frac{7}{6}  

a)

1 161\ \frac{1}{6}  

b)

1 131\ \frac{1}{3}  

c)

1 121\ \frac{1}{2}  

d)

1 561\ \frac{5}{6}  

8.
Change to an improper fraction.

Change to an improper fraction.

a)

244\frac{24}{4}

b)

354\frac{35}{4}

c)

364\frac{36}{4}

d)

968\frac{96}{8}

9.
What is the sum?

What is the sum?

a)

612\frac{6}{12}

b)

1712\frac{17}{12}

c)

1

d)

57\frac{5}{7}

10.
What is the difference?

What is the difference?

a)

1324\frac{13}{24}

b)

524\frac{5}{24}

c)

1248\frac{12}{48}

d)

65\frac{6}{5}

11.
4/8 + 1/3 =
a)
5/11
b)
4/8
c)
13/24
d)
4/11
12.

When the denominators are not the same, I must find a...

a)

common numerator

b)

common denominator

c)

equivalent fraction

d)

mixed number

13.

When adding or subtracting fractions, I NEVER add or subtract the...

a)

numerators

b)

denominators

c)

mixed numbers

d)

equivalent fractions

14.

When adding or subtracting fractions, I always add or subtract the...

a)

numerators

b)

denominators

c)

mixed numbers

d)

equivalent fractions

WaygroundAnswer Key

5.NF.1 Add &Sub Mixed numbers & Fractions W' Unlike Denominators

Total questions: 14

1.
a)

3 253\ \frac{2}{5}

2.
b)

16 6716\ \frac{6}{7}

3.
c)

3 233\ \frac{2}{3}

4.
a)

2 382\ \frac{3}{8}

5.
c)

198\frac{19}{8}  

6.
a)

1 891\ \frac{8}{9}  

7.
a)

1 161\ \frac{1}{6}  

8.
b)

354\frac{35}{4}

9.
b)

1712\frac{17}{12}

10.
a)

1324\frac{13}{24}

11.
c) 13/24
12.
b)

common denominator

13.
b)

denominators

14.
a)

numerators

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FAQs

What does this worksheet cover?

This Grade 5 worksheet covers interpreting models of mixed numbers and fractions, converting between improper fractions and mixed numbers, and adding or subtracting fractions with unlike denominators. Its 14 multiple-choice items build the connected skills students need to find a common denominator, combine the numerators correctly, and represent answers in the requested form.

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

Use the model and conversion questions first to review how mixed numbers and improper fractions represent quantities, then guide students through the addition and subtraction items. Before students work independently, have them explain why unlike denominators require a common denominator and why only the numerators are added or subtracted after the fractions are rewritten as equivalent fractions.

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

Watch for students adding or subtracting denominators, choosing a common numerator instead of a common denominator, or combining fractions before rewriting them with equivalent denominators. In the model and conversion items, students may also confuse an improper fraction with a mixed number or select a representation that does not match the visual model.

How do I assign and grade this worksheet?

This worksheet is available on Wayground as a printable PDF and as a digital quiz, and it includes a complete answer key for all 14 multiple-choice questions. You can grade printable submissions by scanning student work with the Wayground for Teachers app, while the digital quiz provides a paper-free assignment option.

How can I differentiate this fractions worksheet for my students?

In the worksheet’s Advanced Settings, adjust font spacing or font size to make the mixed-number conversions and fraction equations easier to read. You can also apply a dyslexia-friendly font or translate the worksheet into another language when those file-level changes support access to the multiple-choice items.

Where can I find more worksheets like this on Wayground?

Wayground offers a comprehensive collection of free printable worksheets and practice problems across all 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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