Grade 5 Math · Fraction Addition and Subtraction

Grade 5 Fraction Addition and Subtraction Practice Test

Build Grade 5 Math skills with five 10-question practice tests on adding and subtracting fractions, common denominators, equivalent fractions, mixed numbers, simplification, and real-world problems.

Fraction Addition and Subtraction Practice Tests

These Grade 5 Math practice tests help students add and subtract fractions accurately. Students practice common denominators, equivalent fractions, simplifying results, mixed numbers, estimation, and real-world measurement problems.

Skills covered

  • Adding and subtracting fractions with like denominators
  • Finding common denominators for unlike fractions
  • Using equivalent fractions to compare equal-size parts
  • Adding and subtracting mixed numbers with regrouping
  • Converting between improper fractions and mixed numbers
  • Simplifying answers and checking reasonableness

How to use these practice tests

Read the denominators first. If they differ, find a common denominator and rewrite each fraction before combining the numerators. Simplify the final answer and label units in measurement problems.

For more Grade 5 Math practice, return to the Grade 5 Math category.

5. Test

Grade 5 Fraction Addition and Subtraction Practice Tests

A 10-question Grade 5 Math practice test on adding and subtracting fractions, common denominators, equivalent fractions, mixed numbers, simplification, and word problems.

Find a common denominator when needed, combine the numerators, simplify the result, and use estimation or a model to check your answer.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What is 27\frac{2}{7} + 37\frac{3}{7}?

Please select an answer first.

Correct answer: A

The correct answer is 57\frac{5}{7}.

  1. Find a common denominator: Rewrite the fractions as equivalent fractions when their denominators are different.
  2. Calculate and simplify: The denominators match, so add the numerators: 2/7 + 3/7 = 5/7.
  3. Check the choice: The correct choice is 57\frac{5}{7}.

The denominators match, so add the numerators: 2/7 + 3/7 = 5/7.

2. QuestionMultiple choice

What is 58\frac{5}{8} − 12\frac{1}{2}?

Please select an answer first.

Correct answer: B

The correct answer is 18\frac{1}{8}.

  1. Find a common denominator: Rewrite the fractions as equivalent fractions when their denominators are different.
  2. Calculate and simplify: Rewrite 1/2 as 4/8, then 5/8 − 4/8 = 1/8.
  3. Check the choice: The correct choice is 18\frac{1}{8}.

Rewrite 1/2 as 4/8, then 5/8 − 4/8 = 1/8.

3. QuestionMultiple choice

What is 34\frac{3}{4} + 23\frac{2}{3}?

Please select an answer first.

Correct answer: C

The correct answer is 1 512\frac{5}{12}.

  1. Find a common denominator: Rewrite the fractions as equivalent fractions when their denominators are different.
  2. Calculate and simplify: Use twelfths: 3/4 = 9/12 and 2/3 = 8/12; 17/12 = 1 5/12.
  3. Check the choice: The correct choice is 1 512\frac{5}{12}.

Use twelfths: 3/4 = 9/12 and 2/3 = 8/12; 17/12 = 1 5/12.

4. QuestionMultiple choice

What is 79\frac{7}{9} − 512\frac{5}{12}?

Please select an answer first.

Correct answer: D

The correct answer is 1336\frac{13}{36}.

  1. Find a common denominator: Rewrite the fractions as equivalent fractions when their denominators are different.
  2. Calculate and simplify: Use thirty-sixths: 7/9 = 28/36 and 5/12 = 15/36, so the difference is 13/36.
  3. Check the choice: The correct choice is 1336\frac{13}{36}.

Use thirty-sixths: 7/9 = 28/36 and 5/12 = 15/36, so the difference is 13/36.

5. QuestionMultiple choice

What is 23\frac{2}{3} + 56\frac{5}{6}?

Please select an answer first.

Correct answer: A

The correct answer is 1 12\frac{1}{2}.

  1. Find a common denominator: Rewrite the fractions as equivalent fractions when their denominators are different.
  2. Calculate and simplify: Rewrite 2/3 as 4/6: 4/6 + 5/6 = 9/6 = 1 1/2.
  3. Check the choice: The correct choice is 1 12\frac{1}{2}.

Rewrite 2/3 as 4/6: 4/6 + 5/6 = 9/6 = 1 1/2.

6. QuestionMultiple choice

What is 4 15\frac{1}{5} − 2 310\frac{3}{10}?

Please select an answer first.

Correct answer: B

The correct answer is 1 910\frac{9}{10}.

  1. Find a common denominator: Rewrite the fractions as equivalent fractions when their denominators are different.
  2. Calculate and simplify: Use tenths: 4 2/10 − 2 3/10 requires regrouping, giving 1 9/10.
  3. Check the choice: The correct choice is 1 910\frac{9}{10}.

Use tenths: 4 2/10 − 2 3/10 requires regrouping, giving 1 9/10.

7. QuestionMultiple choice

Which fraction is equivalent to 34\frac{3}{4}?

Please select an answer first.

Correct answer: C

The correct answer is 68\frac{6}{8}.

  1. Find a common denominator: Rewrite the fractions as equivalent fractions when their denominators are different.
  2. Calculate and simplify: Multiplying both numerator and denominator by 2 gives 3/4 = 6/8.
  3. Check the choice: The correct choice is 68\frac{6}{8}.

Multiplying both numerator and denominator by 2 gives 3/4 = 6/8.

8. QuestionMultiple choice

A student says 12\frac{1}{2} + 13\frac{1}{3} = 25\frac{2}{5}. What is the error?

Please select an answer first.

Correct answer: D

The correct answer is The denominators must be made common before adding the numerators..

  1. Find a common denominator: Rewrite the fractions as equivalent fractions when their denominators are different.
  2. Calculate and simplify: The denominators 2 and 3 name different-size parts, so rewrite the fractions as 3/6 and 2/6 before adding.
  3. Check the choice: The correct choice is The denominators must be made common before adding the numerators..

The denominators 2 and 3 name different-size parts, so rewrite the fractions as 3/6 and 2/6 before adding.

9. QuestionMultiple choice

What number makes 14\frac{1}{4} + □\square = 34\frac{3}{4} true?

Please select an answer first.

Correct answer: A

The correct answer is 12\frac{1}{2}.

  1. Find a common denominator: Rewrite the fractions as equivalent fractions when their denominators are different.
  2. Calculate and simplify: Subtract 1/4 from 3/4: 3/4 − 1/4 = 2/4 = 1/2.
  3. Check the choice: The correct choice is 12\frac{1}{2}.

Subtract 1/4 from 3/4: 3/4 − 1/4 = 2/4 = 1/2.

10. QuestionMultiple choice

Which summary best describes adding and subtracting fractions?

Please select an answer first.

Correct answer: B

The correct answer is Use equivalent fractions and a common denominator, combine numerators, then simplify..

  1. Find a common denominator: Rewrite the fractions as equivalent fractions when their denominators are different.
  2. Calculate and simplify: Equivalent fractions preserve value while making the parts the same size, so the operation can be completed accurately.
  3. Check the choice: The correct choice is Use equivalent fractions and a common denominator, combine numerators, then simplify..

Equivalent fractions preserve value while making the parts the same size, so the operation can be completed accurately.

Previous testNext test

Frequently asked questions about Grade 5 Fraction Addition and Subtraction

Do you add the denominators when adding fractions?

No. Use a common denominator, then add or subtract the numerators while keeping the denominator.

Why are equivalent fractions important?

Equivalent fractions keep the same value while expressing the parts with a common denominator, which makes unlike fractions easier to combine.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 5 Fraction Addition and Subtraction questions in total.