Break a Fraction into Parts is a free printable Grade 4 maths worksheet on decomposing a fraction into unit fractions, and spotting a wrong decomposition, 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 pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 25 of 25 · the same problems every time you open this link.

One paper per pupil

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Break a Fraction into Parts

4.NF.B.3

NameDate

Write true or false.

1.8/9 = 1/9 + 1/9 + 1/9 + 1/9 + 1/9 + 1/9 + 1/9 + 1/9 + 1/9

2.2/4 = 1/4 + 1/4 + 1/4

3.4/10 = 1/10 + 1/10 + 1/10 + 1/10

4.3/4 = 1/4 + 1/4 + 1/4

5.7/8 = 1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8 + 1/8

6.4/8 = 1/8 + 1/8 + 1/8 + 1/8 + 1/8

7.9/10 = 1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10

8.5/6 = 1/6 + 1/6 + 1/6 + 1/6 + 1/6 + 1/6

9.7/10 = 1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10 + 1/10

10.2/8 = 1/8 + 1/8

LessonPrint · 4.NF.B.3 · Set 25 · free to copy for classroom use

Answer key — Break a Fraction into Parts

Set 25. Prints on its own sheet.

1.false — that makes 9/9
2.false — that makes 3/4
3.true
4.true
5.true
6.false — that makes 5/8
7.true
8.false — that makes 6/6
9.false — that makes 8/10
10.true

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