K12Junior

GRADE 5 · PRINTABLE PRACTICE

Add fractions with unlike denominators worksheet

Rename fractions with a common denominator before adding. Print nine grade 5 questions with an answer key and explanations for home or classroom practice.

Prepare your worksheet

Try the questions on paper. Open the answer key to check your work. When printing, the answer key can be included on a separate page.

Learn the method and try online practice

Practice questions

Name: ____________________________   Date: ______________

Rename fractions with a common denominator before adding. Show your thinking where helpful.

  1. Add 1/2 + 1/3. Simplify your answer.

  2. Add 1/3 + 1/4. Simplify your answer.

  3. Add 1/4 + 1/6. Simplify your answer.

  4. Add 2/5 + 1/6. Simplify your answer.

  5. Add 2/3 + 1/5. Simplify your answer.

  6. Add 3/4 + 1/8. Simplify your answer.

  7. Add 1/5 + 1/3. Simplify your answer.

  8. Add 5/6 + 1/9. Simplify your answer.

  9. Add 3/8 + 1/4. Simplify your answer.

Answer key and explanations

Answer key

  1. 5/6 — Use denominator 6: 3/6 + 2/6 = 5/6.
  2. 7/12 — Use denominator 12: 4/12 + 3/12 = 7/12.
  3. 5/12 — Use denominator 12: 3/12 + 2/12 = 5/12.
  4. 17/30 — Use denominator 30: 12/30 + 5/30 = 17/30.
  5. 13/15 — Use denominator 15: 10/15 + 3/15 = 13/15.
  6. 7/8 — Use denominator 8: 6/8 + 1/8 = 7/8.
  7. 8/15 — Use denominator 15: 3/15 + 5/15 = 8/15.
  8. 17/18 — Use denominator 18: 15/18 + 2/18 = 17/18.
  9. 5/8 — Use denominator 8: 3/8 + 2/8 = 5/8.

What to do next

If a question was difficult, return to the lesson’s worked example and explain one step aloud. These nine questions are focused practice, not a diagnostic assessment.

Open Add fractions with unlike denominators lesson