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Free Grade 3 Working with Simplifying Fractions Worksheets

Free Grade 3 worksheets for Working with Simplifying Fractions: 12 real questions with a full answer key and worked solutions. Simplifying means writing a fraction with the smallest possible numbers. Divide the numerator and denominator by their highest common factor.

Price

Free

Difficulty

Stretch

Estimated time

30 min

Total marks

24

Learning objectives

Every objective is checkable, and each one maps to an activity and an assessment.

  • UnderstandExplain working with simplifying fractions

    Explain working with simplifying fractions accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • ApplyCalculate working with simplifying fractions

    Calculate working with simplifying fractions accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • AnalyseCompare working with simplifying fractions

    Compare working with simplifying fractions accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • EvaluateJustify working with simplifying fractions

    Justify working with simplifying fractions accurately in a familiar context.

    Assessed by: Exit ticket of four short items

Prerequisites

Close these gaps first — each has its own free lesson, worksheet and quiz.

How Working with Simplifying Fractions works

Simplifying means writing a fraction with the smallest possible numbers. Divide the numerator and denominator by their highest common factor.

Key wordssimplest formlowest termsHCFcancel

12 practice questions

Easy to hard, 24 marks in total. Try them first, then open the answers.

  1. 1.Simplify 6/8 fully.[1]
  2. 2.Simplify 2/14 fully.[1]
  3. 3.Simplify 4/16 fully.[1]
  4. 4.Simplify 6/21 fully.[1]
  5. 5.Simplify 6/15 fully.[2]
  6. 6.Simplify 18/36 fully.[2]
  7. 7.Simplify 8/16 fully.[2]
  8. 8.Simplify 6/24 fully.[2]
  9. 9.Simplify 21/35 fully.[3]
  10. 10.Simplify 21/56 fully.[3]
  11. 11.Simplify 30/36 fully.[3]
  12. 12.Simplify 24/28 fully.[3]
Show answers and working
  1. 1. 3/4

    HCF of 6 and 8 is 2. Divide top and bottom by 2: 6÷2 / 8÷2. = 3/4

  2. 2. 1/7

    HCF of 2 and 14 is 2. Divide top and bottom by 2: 2÷2 / 14÷2. = 1/7

  3. 3. 1/4

    HCF of 4 and 16 is 4. Divide top and bottom by 4: 4÷4 / 16÷4. = 1/4

  4. 4. 2/7

    HCF of 6 and 21 is 3. Divide top and bottom by 3: 6÷3 / 21÷3. = 2/7

  5. 5. 2/5

    HCF of 6 and 15 is 3. Divide top and bottom by 3: 6÷3 / 15÷3. = 2/5

  6. 6. 1/2

    HCF of 18 and 36 is 18. Divide top and bottom by 18: 18÷18 / 36÷18. = 1/2

  7. 7. 1/2

    HCF of 8 and 16 is 8. Divide top and bottom by 8: 8÷8 / 16÷8. = 1/2

  8. 8. 1/4

    HCF of 6 and 24 is 6. Divide top and bottom by 6: 6÷6 / 24÷6. = 1/4

  9. 9. 3/5

    HCF of 21 and 35 is 7. Divide top and bottom by 7: 21÷7 / 35÷7. = 3/5

  10. 10. 3/8

    HCF of 21 and 56 is 7. Divide top and bottom by 7: 21÷7 / 56÷7. = 3/8

  11. 11. 5/6

    HCF of 30 and 36 is 6. Divide top and bottom by 6: 30÷6 / 36÷6. = 5/6

  12. 12. 6/7

    HCF of 24 and 28 is 4. Divide top and bottom by 4: 24÷4 / 28÷4. = 6/7

Worked examples

Easy example

Simplify 10/18 fully.

  1. HCF of 10 and 18 is 2.
  2. Divide top and bottom by 2: 10÷2 / 18÷2.
  3. = 5/9
  4. Answer: 5/9
Medium example

Simplify 20/45 fully.

  1. HCF of 20 and 45 is 5.
  2. Divide top and bottom by 5: 20÷5 / 45÷5.
  3. = 4/9
  4. Answer: 4/9
Hard example

Simplify 33/88 fully.

  1. HCF of 33 and 88 is 11.
  2. Divide top and bottom by 11: 33÷11 / 88÷11.
  3. = 3/8
  4. Answer: 3/8

Interactive practice

Free, no account required — answer on screen or print it.

Common mistakes

What learners typically get wrong, and how to fix it.

  • Stops after dividing once, leaving a fraction that can still be simplified.

    Correction: Check again: do top and bottom still share a factor?

  • Divides top and bottom by different numbers.

    Correction: Always divide both by the same number.

Teacher tips

  • · Ask pupils to check their final answer has HCF 1.

Parent tips

  • · Simplify sports stats, like 6 wins out of 8 games.

Real-life applications

  • · Reporting results: 18/24 of the class becomes 3/4.

Assessment objectives

How mastery is evidenced, and which standards it maps to.

NATIONAL-CURRICULUM NAT-737.1 — Mapped statement covering Working with Simplifying Fractions.IB IB-236.2 — Mapped statement covering Working with Simplifying Fractions.

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Frequently asked

Is this Grade 3 Working with Simplifying Fractions worksheet really free?
Yes. Every worksheets on FreeMathWorksheet is free to use, print and share — no account, no paywall and no watermark.
What should a learner already know before this?
Start with Introducing Simplifying Fractions, Equivalent Fractions. Each one has its own free lesson, worksheet and quiz.
How is the worksheet sequenced?
Recognition first, then understanding, application, reasoning and finally mastery — the same ladder used across every free resource on the platform.
What comes next after Working with Simplifying Fractions?
Move on to Simplifying Fractions in Context, Introduction to Fractions, Parts of a Fraction, Numerator, which build directly on this idea.

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