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Fraction Worksheets — Add, Subtract & Multiply (Lowest Terms)

Fraction arithmetic is the first topic where many students need to see the answer "in lowest terms" to know they are done. Every fraction problem on this page is generated from integers and reduced by the engine — no decimals, no rounding, no floating-point surprises. Students can check any answer against the step-by-step result in the key.

Sample problems (new ones below)

1/9 + 6/5 = → 59/455/5 − 6/12 = → 1/25/2 − 1/8 = → 19/89/5 + 7/10 = → 5/29/6 × 7/2 = → 21/410/8 × 6/6 = → 5/42/3 × 5/8 = → 5/124/6 + 4/12 = → 15/9 × 8/9 = → 40/814/11 × 6/8 = → 3/112/9 + 10/12 = → 19/183/7 × 7/4 = → 3/411/12 + 3/4 = → 5/34/9 − 2/11 = → 26/997/2 × 6/5 = → 21/51/5 × 6/2 = → 3/510/12 × 4/4 = → 5/66/8 + 11/12 = → 5/31/8 × 4/7 = → 1/147/6 − 11/12 = → 1/46/10 × 4/5 = → 12/259/10 − 3/11 = → 69/1106/11 + 5/12 = → 127/1322/12 + 4/8 = → 2/3

Worksheet controls

Common Core aligned: 2.OA.B.2, 2.NBT.B.5, 2.NBT.B.7

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Fractions
Name: _______________  ·  Date: _______________
unitfig.com/math-worksheets/fractions · free printable
1.2/10 + 6/9 =
2.9/6 − 1/2 =
3.11/10 + 7/7 =
4.5/7 + 1/5 =
5.8/10 + 10/7 =
6.3/3 + 4/11 =
7.9/6 + 4/2 =
8.6/5 × 2/11 =
9.6/6 × 9/9 =
10.9/9 + 9/7 =
11.9/12 + 11/2 =
12.10/3 − 9/8 =
13.11/3 + 9/10 =
14.2/8 + 11/7 =
15.9/8 − 2/6 =
16.6/2 × 7/7 =
17.10/9 × 10/11 =
18.3/4 × 2/3 =
19.8/4 × 4/11 =
20.7/4 − 6/6 =
21.6/3 + 6/5 =
22.11/3 + 1/10 =
23.11/6 − 7/6 =
24.11/2 × 7/9 =
Answer Key
1. 13/15(Answer shown in lowest terms.)
2. 1(Answer shown in lowest terms.)
3. 21/10(Answer shown in lowest terms.)
4. 32/35(Answer shown in lowest terms.)
5. 78/35(Answer shown in lowest terms.)
6. 15/11(Answer shown in lowest terms.)
7. 7/2(Answer shown in lowest terms.)
8. 12/55(Answer shown in lowest terms.)
9. 1(Answer shown in lowest terms.)
10. 16/7(Answer shown in lowest terms.)
11. 25/4(Answer shown in lowest terms.)
12. 53/24(Answer shown in lowest terms.)
13. 137/30(Answer shown in lowest terms.)
14. 51/28(Answer shown in lowest terms.)
15. 19/24(Answer shown in lowest terms.)
16. 3(Answer shown in lowest terms.)
17. 100/99(Answer shown in lowest terms.)
18. 1/2(Answer shown in lowest terms.)
19. 8/11(Answer shown in lowest terms.)
20. 3/4(Answer shown in lowest terms.)
21. 16/5(Answer shown in lowest terms.)
22. 113/30(Answer shown in lowest terms.)
23. 2/3(Answer shown in lowest terms.)
24. 77/18(Answer shown in lowest terms.)

Teaching tips for fractions

  • •Before any computation, practice identifying equivalent fractions: 2/4 = 1/2. The engine always reduces, so students learn what the "final form" looks like.
  • •For addition and subtraction, emphasize the common denominator step visually: draw two fraction bars with the same total pieces.
  • •For multiplication, teach "multiply across": numerators together, denominators together, then reduce. No common denominator needed.

Common mistakes to watch for

✗ Adding numerators and denominators across (3/5 + 1/5 = 4/10).
✓ Only add numerators when denominators match. The engine keeps denominators between 2 and 12 so this mistake is easy to catch early.
✗ Forgetting to reduce the final answer.
✓ Make "is this in lowest terms?" the last question on every problem. The answer key always shows the reduced form as the target.

Check your answers with the tools

Browse all converters →Quick conversion charts →

Frequently Asked Questions

Are the answers always in lowest terms?

Yes. The generator reduces every result by the greatest common divisor, so 2/4 never appears as an answer — only 1/2.

What grades are these fraction worksheets for?

Basic fraction equivalence appears in grade 3 (3.NF.A.3), adding/subtracting like and unlike denominators in grades 4–5 (4.NF.B.3, 5.NF.A.1), and multiplication in grade 5 (5.NF.B.4).

Do you include negative fractions?

Subtraction can produce a negative result in higher grades, but by default results stay positive for younger students.

More worksheets

➕ Addition➖ Subtraction✖️ Multiplication➗ Division🔟 Decimals± Integers🧮 Order of Operations📏 Unit Conversion📐 Geometry Practice

Last Updated 2026 | Problems are algorithm-generated with the exact NIST/SI constants used by UnitFig converters. Answers are computed programmatically and can be verified with the matching converter.