Free Grade 3 Introducing Subtracting Fractions Worksheets
Free Grade 3 worksheets for Introducing Subtracting Fractions: 12 real questions with a full answer key and worked solutions. Subtracting fractions works like adding: match the denominators, subtract the numerators, simplify.
Free
Core
35 min
24
Learning objectives
Every objective is checkable, and each one maps to an activity and an assessment.
- UnderstandExplain introducing subtracting fractions
Explain introducing subtracting fractions accurately in a familiar context.
Assessed by: Exit ticket of four short items
- ApplyCalculate introducing subtracting fractions
Calculate introducing subtracting fractions accurately in a familiar context.
Assessed by: Exit ticket of four short items
- AnalyseCompare introducing subtracting fractions
Compare introducing subtracting fractions accurately in a familiar context.
Assessed by: Exit ticket of four short items
- EvaluateJustify introducing subtracting fractions
Justify introducing subtracting 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 Introducing Subtracting Fractions works
Subtracting fractions works like adding: match the denominators, subtract the numerators, simplify.
12 practice questions
Easy to hard, 24 marks in total. Try them first, then open the answers.
- 1.2/3 − 1/3 = ?[1]
- 2.1/2 − 1/2 = ?[1]
- 3.3/6 − 2/6 = ?[1]
- 4.1/3 − 1/3 = ?[1]
- 5.2/3 − 2/4 = ?[2]
- 6.2/5 − 2/7 = ?[2]
- 7.1/4 − 1/6 = ?[2]
- 8.1/2 − 1/3 = ?[2]
- 9.2/2 − 2/8 = ?[3]
- 10.1/6 − 1/8 = ?[3]
- 11.5/6 − 1/3 = ?[3]
- 12.1/8 − 1/9 = ?[3]
Show answers and working
1. 1/3
Common denominator: 3. 2/3 − 1/3 = 1/3. Simplify: 1/3
2. 0
Common denominator: 2. 1/2 − 1/2 = 0/2. Simplify: 0
3. 1/6
Common denominator: 6. 3/6 − 2/6 = 1/6. Simplify: 1/6
4. 0
Common denominator: 3. 1/3 − 1/3 = 0/3. Simplify: 0
5. 1/6
Common denominator: 12. 8/12 − 6/12 = 2/12. Simplify: 1/6
6. 4/35
Common denominator: 35. 14/35 − 10/35 = 4/35. Simplify: 4/35
7. 1/12
Common denominator: 12. 3/12 − 2/12 = 1/12. Simplify: 1/12
8. 1/6
Common denominator: 6. 3/6 − 2/6 = 1/6. Simplify: 1/6
9. 3/4
Common denominator: 8. 8/8 − 2/8 = 6/8. Simplify: 3/4
10. 1/24
Common denominator: 24. 4/24 − 3/24 = 1/24. Simplify: 1/24
11. 1/2
Common denominator: 6. 5/6 − 2/6 = 3/6. Simplify: 1/2
12. 1/72
Common denominator: 72. 9/72 − 8/72 = 1/72. Simplify: 1/72
Worked examples
2/7 − 2/7 = ?
- Common denominator: 7.
- 2/7 − 2/7 = 0/7.
- Simplify: 0
- Answer: 0
1/3 − 1/4 = ?
- Common denominator: 12.
- 4/12 − 3/12 = 1/12.
- Simplify: 1/12
- Answer: 1/12
1/3 − 1/6 = ?
- Common denominator: 6.
- 2/6 − 1/6 = 1/6.
- Simplify: 1/6
- Answer: 1/6
Interactive practice
Free, no account required — answer on screen or print it.
Common mistakes
What learners typically get wrong, and how to fix it.
Subtracts the denominators.
Correction: Keep the common denominator — only the numerators change.
Puts the smaller fraction first.
Correction: Compare the fractions first to see which is bigger.
Teacher tips
- · Ask for a quick estimate: is the answer more or less than 1/2?
Parent tips
- · Ask how much pizza is left after some is eaten.
Real-life applications
- · Working out how much is left after using part of something.
Assessment objectives
How mastery is evidenced, and which standards it maps to.
Every free resource for Introducing Subtracting Fractions
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Frequently asked
- Is this Grade 3 Introducing Subtracting 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 Adding 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 Introducing Subtracting Fractions?
- Move on to Working with Subtracting Fractions, Subtracting Fractions in Context, Introduction to Fractions, Parts of a Fraction, which build directly on this idea.
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