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Break Apart a Fraction Two Ways is a free printable Grade 4 math worksheet on writing one fraction as two different sums, aligned to Common Core standard 4.NF.B.3. It prints 10 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

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All 25 sets ask different questions.

Break Apart a Fraction Two Ways

4.NF.B.3

NameDate

Fill in both blanks.

1.7/8 = 3/8 + ___ and 7/8 = 1/8 + ___
2.3/5 = 1/5 + ___ and 3/5 = 2/5 + ___
3.4/6 = 1/6 + ___ and 4/6 = 2/6 + ___
4.4/5 = 2/5 + ___ and 4/5 = 1/5 + ___
5.4/5 = 1/5 + ___ and 4/5 = 2/5 + ___
6.8/12 = 3/12 + ___ and 8/12 = 6/12 + ___
7.3/8 = 1/8 + ___ and 3/8 = 2/8 + ___
8.4/10 = 1/10 + ___ and 4/10 = 2/10 + ___
9.4/5 = 3/5 + ___ and 4/5 = 1/5 + ___
10.3/6 = 1/6 + ___ and 3/6 = 2/6 + ___

LessonPrint · 4.NF.B.3 · Set 1 · free to copy for classroom use

Answer key — Break Apart a Fraction Two Ways

Set 1. Prints on its own sheet.

  1. 1.4/8 and 6/8
  2. 2.2/5 and 1/5
  3. 3.3/6 and 2/6
  4. 4.2/5 and 3/5
  5. 5.3/5 and 2/5
  6. 6.5/12 and 2/12
  7. 7.2/8 and 1/8
  8. 8.3/10 and 2/10
  9. 9.1/5 and 3/5
  10. 10.2/6 and 1/6

Questions about Break Apart a Fraction Two Ways

What does the Break Apart a Fraction Two Ways worksheet cover?

It practices writing one fraction as two different sums — 10 questions for Grade 4, all on Common Core 4.NF.B.3: Add and subtract fractions with the same denominator. The instruction to students is “Fill in both blanks”, and the answer key follows on the next sheet.

Which Common Core standard does Break Apart a Fraction Two Ways practice?

CCSS.MATH.CONTENT.4.NF.B.3 — 4.NF.B.3, under Number & Operations — Fractions for Grade 4. The published standard reads: “Understand a fraction a/b with a > 1 as a sum of fractions 1/b; add and subtract fractions with like denominators.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Break Apart a Fraction Two Ways is written for Grade 4, typically ages 9-10. It is one of the sheets on 4.NF.B.3, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.

Does Break Apart a Fraction Two Ways come with an answer key?

Yes. All 10 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.

How many different versions of Break Apart a Fraction Two Ways can I print?

25 — one per student, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.

Is Break Apart a Fraction Two Ways free to print and photocopy?

Yes. Break Apart a Fraction Two Ways, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.

More practice for 4.NF.B.3

Add and subtract fractions with the same denominator.

All Grade 4 worksheets

Last reviewed 2026-09-05. Aligned to 4.NF.B.3 of the Common Core State Standards for Mathematics.