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Adding and Subtracting Fractions and Mixed Numbers - Printable Math Worksheets 6th Grade - Wayground

Adding and Subtracting Fractions and Mixed Numbers

Vashti Daise

Created by Vashti Daise

22 questions

6th Grade

Math

Updated Oct 2026

This Grade 6 mathematics worksheet gives students focused practice adding and subtracting positive fractions with like and unlike denominators, including mixed numbers. Across 22 multiple-choice questions, students identify least common denominators, convert fractions as needed, calculate, reduce results, and express answers in simplest form. The worksheet includes both direct fraction calculations and mixed-number problems, such as adding or subtracting values with different denominators. It is useful for independent practice, review, or a quick check of procedural fluency after instruction on common denominators and simplifying fractions. This free printable worksheet includes a complete answer key for efficient checking and feedback.

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Adding and Subtracting Fractions and Mixed Numbers

Total questions: 22

Name
Class
Date
1.

I can add and subtracting positive fractions with unlike-denominators.

38+13=\frac{3}{8}+\frac{1}{3}=  

a)

411\frac{4}{11}  

b)

13\frac{1}{3}  

c)

  1724\frac{17}{24}

d)

  38\frac{3}{8}  

2.

​I can add and subtract fractions with like denominators.

34−14=\frac{3}{4}-\frac{1}{4}=  

a)

20\frac{2}{0}  

b)

00  

c)

25\frac{2}{5}  

d)

12\frac{1}{2}  

3.

I can add and subtracting positive fractions with unlike-denominators.

14+12=\frac{1}{4}+\frac{1}{2}=  

a)

34\frac{3}{4}  

b)

26\frac{2}{6}  

c)

14\frac{1}{4}  

d)

13\frac{1}{3}  

4.

​I can add and subtract fractions with like denominators.

78−28=\frac{7}{8}-\frac{2}{8}=  

a)

58\frac{5}{8}  

b)

50\frac{5}{0}  

c)

00  

d)

12\frac{1}{2}  

5.

​I can add and subtract fractions with like denominators.

38+18=\frac{3}{8}+\frac{1}{8}=  

a)

14\frac{1}{4}  

b)

12\frac{1}{2}  

c)

58\frac{5}{8}  

d)

416\frac{4}{16}  

6.

23+16=\frac{2}{3}+\frac{1}{6}=  

a)

36\frac{3}{6}  

b)

39\frac{3}{9}  

c)

1518\frac{15}{18}  

7.

19+52=\frac{1}{9}+\frac{5}{2}=  

a)

4718\frac{47}{18}  

b)

618\frac{6}{18}  

c)

611\frac{6}{11}  

8.

43+18=\frac{4}{3}+\frac{1}{8}=  

a)

3524\frac{35}{24}  

b)

511\frac{5}{11}  

c)

524\frac{5}{24}  

9.

12+35=\frac{1}{2}+\frac{3}{5}=  

a)

47\frac{4}{7}  

b)

1110\frac{11}{10}  

c)

410\frac{4}{10}  

10.


2 210+5 15=2\ \frac{2}{10}+5\ \frac{1}{5}=  Reduce if needed.

a)

5 345\ \frac{3}{4}  

b)

7 257\ \frac{2}{5}  

c)

3 353\ \frac{3}{5}  

d)

7 4107\ \frac{4}{10}  

11.


3 58 +6 12 =3\ \frac{5}{8}\ +6\ \frac{1}{2}\ =  

Answer in simplest form.

a)

9 189\ \frac{1}{8}  

b)

9 689\ \frac{6}{8}  

c)

9 989\ \frac{9}{8}  

d)

10 1810\ \frac{1}{8}  

12.


12 14 − 5 23 =12\ \frac{1}{4}\ -\ 5\ \frac{2}{3}\ =  

Answer in simplest form. 

a)

7 7127\ \frac{7}{12}  

b)

6 7126\ \frac{7}{12}  

c)

7 127\ \frac{1}{2}  

d)

7 377\ \frac{3}{7}  

13.


9 34 − 1 13 =9\ \frac{3}{4}\ -\ 1\ \frac{1}{3}\ =  

Answer in simplest form. 

a)

7 5127\ \frac{5}{12}  

b)

8 5128\ \frac{5}{12}  

c)

10 51210\ \frac{5}{12}  

d)

8 138\ \frac{1}{3}  

14.
Addition: Find Lowest Common Denominator & solve 8 4/5 + 9 1/10 =
Addition:
Find Lowest Common Denominator & solve
8     4/5    +    9    1/10  =
a)
18   5/15
b)
17   5/10
c)
17   9/20
d)
17   9/10
15.
Subtraction: Find Lowest Common Denominator & solve 8 5/7 - 7 2/3 =
 Subtraction:
Find Lowest Common Denominator & solve 
8    5/7    -    7    2/3 = 
a)
1    3/4
b)
1   1/21
c)
1     1/24 
d)
1    3/24
16.


12 14 − 5 23 =12\ \frac{1}{4}\ -\ 5\ \frac{2}{3}\ =  

Answer in simplest form. 

a)

7 7127\ \frac{7}{12}  

b)

6 7126\ \frac{7}{12}  

c)

7 127\ \frac{1}{2}  

d)

7 377\ \frac{3}{7}  

17.


21 712 −11 56 =21\ \frac{7}{12}\ -11\ \frac{5}{6}\ =  

Answer in simplest form. 

a)

10 2610\ \frac{2}{6}  

b)

10 21210\ \frac{2}{12}  

c)

9 7129\ \frac{7}{12}  

d)

9 349\ \frac{3}{4}  

18.

Find the lowest common denominator of these fractions: 2/7 and 2/21

a)

7

b)

21

c)

18

d)

147

19.

Find the least common denominator of 3/4 and 3/8.

a)

3

b)

4

c)

8

d)

12

20.
What do you need to have when adding unlike fractions?
a)
common denominator
b)
common numerator
c)
common numerator and denominator
21.
What would be a least common denominator of the following fractions?

What would be a least common denominator of the following fractions?

a)

15

b)

10

c)

30

d)

20

22.
What would be a least common denominator of the following fractions?

What would be a least common denominator of the following fractions?

a)

2

b)

6

c)

12

d)

9

WaygroundAnswer Key

Adding and Subtracting Fractions and Mixed Numbers

Total questions: 22

1.
c)

  1724\frac{17}{24}

2.
d)

12\frac{1}{2}  

3.
a)

34\frac{3}{4}  

4.
a)

58\frac{5}{8}  

5.
b)

12\frac{1}{2}  

6.
c)

1518\frac{15}{18}  

7.
a)

4718\frac{47}{18}  

8.
a)

3524\frac{35}{24}  

9.
b)

1110\frac{11}{10}  

10.
b)

7 257\ \frac{2}{5}  

11.
d)

10 1810\ \frac{1}{8}  

12.
b)

6 7126\ \frac{7}{12}  

13.
b)

8 5128\ \frac{5}{12}  

14.
d) 17   9/10
15.
b) 1   1/21
16.
b)

6 7126\ \frac{7}{12}  

17.
d)

9 349\ \frac{3}{4}  

18.
b)

21

19.
c)

8

20.
a) common denominator
21.
a)

15

22.
b)

6

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FAQs

What does this worksheet cover?

This Grade 6 worksheet covers adding and subtracting fractions with like and unlike denominators, as well as mixed numbers. Its 22 multiple-choice questions require students to find a least common denominator, perform the operation, reduce the result, and select the answer in simplest form.

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

Introduce the worksheet by modeling how to find a least common denominator, rewrite each fraction with equivalent denominators, and then add or subtract the numerators. Use the questions that ask students to identify the least common denominator, such as for 2/7 and 2/21 or 3/4 and 3/8, before assigning the calculation items. For the mixed-number questions, have students explain how they handled the fractional parts and checked that the final answer is simplified.

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

Watch for students adding or subtracting numerators and denominators directly when the denominators are unlike, or choosing a common denominator that is not the least common denominator. Students may also convert only one fraction, fail to reduce the result, or report an unsimplified mixed number. The multiple-choice format makes these errors visible through the selected distractor, especially in the mixed-number addition and subtraction items.

How do I assign and grade this adding and subtracting fractions worksheet?

On Wayground, assign this worksheet either as a printable PDF or as a digital quiz. It includes a complete answer key, and printable submissions can be graded by scanning student work with the Wayground for Teachers app. The printable version also gives schools an option for practice with less screen time.

How can I differentiate this fractions and mixed numbers 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 apply a dyslexia-friendly font or translate the worksheet into another language while keeping the denominator, simplification, and mixed-number practice intact.

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 mastery of essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.

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