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Free Grade 3 Working with Defining Rational Numbers Word Problems Quizzes

Free Grade 3 quizzes for Working with Defining Rational Numbers Word Problems: 12 real questions with a full answer key and worked solutions. A ratio compares parts of a whole. To share in a ratio, add the parts, find one part, then multiply.

Price

Free

Difficulty

Higher

Estimated time

20 min

Total marks

24

Learning objectives

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

  • UnderstandExplain working with defining rational numbers word problems

    Explain working with defining rational numbers word problems accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • ApplyCalculate working with defining rational numbers word problems

    Calculate working with defining rational numbers word problems accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • AnalyseCompare working with defining rational numbers word problems

    Compare working with defining rational numbers word problems accurately in a familiar context.

    Assessed by: Exit ticket of four short items

  • EvaluateJustify working with defining rational numbers word problems

    Justify working with defining rational numbers word problems 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 Defining Rational Numbers Word Problems works

A ratio compares parts of a whole. To share in a ratio, add the parts, find one part, then multiply.

Key wordsratiosharepartsimplify

12 practice questions

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

  1. 1.Simplify the ratio 8:16.[1]
  2. 2.Simplify the ratio 18:6.[1]
  3. 3.Simplify the ratio 24:16.[1]
  4. 4.Simplify the ratio 18:30.[1]
  5. 5.Share 50 in the ratio 3:2.[2]
  6. 6.Share 15 in the ratio 1:4.[2]
  7. 7.Share 20 in the ratio 1:3.[2]
  8. 8.Share 108 in the ratio 4:5.[2]
  9. 9.Share 54 in the ratio 3:6.[3]
  10. 10.Share 49 in the ratio 2:5.[3]
  11. 11.Share 20 in the ratio 2:2.[3]
  12. 12.Share 6 in the ratio 1:1.[3]
Show answers and working
  1. 1. 1:2

    HCF of 8 and 16 is 8. Divide both parts by it: 1:2.

  2. 2. 3:1

    HCF of 18 and 6 is 6. Divide both parts by it: 3:1.

  3. 3. 3:2

    HCF of 24 and 16 is 8. Divide both parts by it: 3:2.

  4. 4. 3:5

    HCF of 18 and 30 is 6. Divide both parts by it: 3:5.

  5. 5. 30 and 20

    Total parts: 3 + 2 = 5. One part: 50 ÷ 5 = 10. 3 × 10 = 30, 2 × 10 = 20.

  6. 6. 3 and 12

    Total parts: 1 + 4 = 5. One part: 15 ÷ 5 = 3. 1 × 3 = 3, 4 × 3 = 12.

  7. 7. 5 and 15

    Total parts: 1 + 3 = 4. One part: 20 ÷ 4 = 5. 1 × 5 = 5, 3 × 5 = 15.

  8. 8. 48 and 60

    Total parts: 4 + 5 = 9. One part: 108 ÷ 9 = 12. 4 × 12 = 48, 5 × 12 = 60.

  9. 9. 18 and 36

    Total parts: 3 + 6 = 9. One part: 54 ÷ 9 = 6. 3 × 6 = 18, 6 × 6 = 36.

  10. 10. 14 and 35

    Total parts: 2 + 5 = 7. One part: 49 ÷ 7 = 7. 2 × 7 = 14, 5 × 7 = 35.

  11. 11. 10 and 10

    Total parts: 2 + 2 = 4. One part: 20 ÷ 4 = 5. 2 × 5 = 10, 2 × 5 = 10.

  12. 12. 3 and 3

    Total parts: 1 + 1 = 2. One part: 6 ÷ 2 = 3. 1 × 3 = 3, 1 × 3 = 3.

Worked examples

Easy example

Simplify the ratio 24:12.

  1. HCF of 24 and 12 is 12.
  2. Divide both parts by it: 2:1.
  3. Answer: 2:1
Medium example

Share 12 in the ratio 1:1.

  1. Total parts: 1 + 1 = 2.
  2. One part: 12 ÷ 2 = 6.
  3. 1 × 6 = 6, 1 × 6 = 6.
  4. Answer: 6 and 6
Hard example

Share 56 in the ratio 3:4.

  1. Total parts: 3 + 4 = 7.
  2. One part: 56 ÷ 7 = 8.
  3. 3 × 8 = 24, 4 × 8 = 32.
  4. Answer: 24 and 32

Interactive practice

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

Common mistakes

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

  • Divides the total by the ratio numbers directly.

    Correction: Add the parts first to find what one part is worth.

  • Writes the ratio in the wrong order.

    Correction: Keep the order the question uses.

Teacher tips

  • · Use bar models with equal-sized boxes for each part.

Parent tips

  • · Make squash in a 1:4 ratio.

Real-life applications

  • · Mixing paint or squash, scaling recipes.

Assessment objectives

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

OCR OCR-757.1 — Mapped statement covering Working with Defining Rational Numbers Word Problems.CAMBRIDGE CAM-447.2 — Mapped statement covering Working with Defining Rational Numbers Word Problems.

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Frequently asked

Is this Grade 3 Working with Defining Rational Numbers Word Problems quiz really free?
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What should a learner already know before this?
Start with Working with Defining Rational Numbers Techniques, Working with Defining Rational Numbers Essentials, Introducing Defining Rational Numbers. Each one has its own free lesson, worksheet and quiz.
How is the quiz 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 Defining Rational Numbers Word Problems?
Move on to Working with Defining Rational Numbers Common Errors, Introducing Defining Rational Numbers, Defining Rational Numbers in Context, which build directly on this idea.

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