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Grade 5 · Math · Fractions

5th Grade Add Fractions With Like Denominators worksheets

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Add Fractions With Like Denominators

Grade 5 Math Worksheet

NameDate

Find each sum in simplest form.

  1. + =

  2. + =

  3. + =

  4. + =

  5. + =

  6. + =

  7. + =

  8. + =

  9. + =

  10. + =

  11. + =

  12. + =

  13. + =

  14. + =

  15. + =

  16. + =

  17. + =

  18. + =

  19. + =

  20. + =

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5th Grade Add Fractions With Like Denominators worksheet 1 – printable PDF
Download PDF: 123456

About this worksheet

When two fractions have the same bottom number their pieces are the same size, so only the top numbers are added: 3/5 + 4/5 = 7/5, which is 1 2/5. The answer is then written in simplest form, as a mixed number when it is more than 1, and reduced when the top and bottom share a factor.

This fifth grade sheet has twenty sums of this kind. Each version has different fractions, and the answer key gives every sum in simplest form.

What your child will learn

  • Add the top numbers
  • Keep the same bottom number
  • Write an improper sum as a mixed number
  • Simplify the answer

Common Core standard: 4.NF.B.3

Worked example

3/5 + 4/5 = 7/5 = 1 2/5.

Common mistake

Adding the bottom numbers too, so 3/5 + 4/5 becomes 7/10.

Helpful hint

Add the tops. The bottom stays the same. Then simplify.

Next skill: Subtract Fractions With RegroupingEarlier: Mixed Numbers to Improper Fractions

Questions parents ask

What is the most common mistake with add fractions with like denominators?

Adding the bottom numbers too, so 3/5 + 4/5 becomes 7/10.

How can I help my child with add fractions with like denominators?

Add the tops. The bottom stays the same. Then simplify.

Are these 5th grade math worksheets free to print?

Yes. All 6 printable versions on this page are free to download and print, with no account needed.

Similar: Equivalent Fractions · Mixed Numbers to Improper Fractions

More 5th grade fractions

See all fractions

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