Key Stage 3: Multiplying and Dividing with Fractions Scheme of Work

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This Key Stage 3 Multiplying and Dividing with Fractions scheme of work is designed for Year 8 work on products and quotients with proper fractions, mixed numbers and top-heavy forms, including visual and written methods and an introduction to algebraic fractions with single brackets.

Use this page to sequence the lessons below, keep cross-simplifying and reciprocal language consistent, and connect fraction arithmetic to area, volume and formula contexts before students move to more formal algebraic manipulation.

For more schemes and topic routes across KS3, GCSE and A-Level, browse the Mr Mathematics Curriculum Hub.

How to use this scheme

Read the prerequisite and key-concept cards first so ordering and the four operations on fractions are secure. Teach the lessons in the order listed unless your department splits pure number fractions from algebraic fractions—if you reorder, keep multiplying and dividing proper fractions before mixed numbers and visual division before written quotients with reciprocals.

Mr Mathematics membership

Presentations, worksheets, question generators and video tutorials for the lessons in this unit are available to members. Explore Mr Mathematics membership if you need full access to the library and schemes of work.

If you are comparing options for a department, the membership page sets out exactly what is included so you can align this unit with your wider KS3 number and algebra plan.

Prerequisite knowledge

Students should be secure with the following before this unit.

  • Order positive and negative integers, decimals and fractions; use the number line as a model for ordering the real numbers; use the symbols =, ≤, <, >, ≥.
  • Use the four operations, including formal written methods, applied to integers, decimals, proper and improper fractions, and mixed numbers, all both positive and negative.

Key concepts

Ideas to keep explicit while students multiply and divide with fractions and mixed numbers.

  • When multiplying and dividing with fractions students should cross-simplify the question to cancel out common terms.
  • Visualising division with fractions and mixed numbers helps students understand the written methods.
  • To divide with fractions, students need to understand reciprocals and how to multiply and divide with 0.1 and 0.01.
  • Answers should be left in their simplest terms.

Working mathematically

How this unit supports fluency, reasoning and problem solving in Key Stage 3.

  • Develop fluency
    • Consolidate their numerical and mathematical capability from key stage 2 and extend their understanding of the number system and place value to include decimals and fractions.
  • Reason mathematically
    • Extend their understanding of the number system; make connections between number relationships, and their algebraic and graphical representations.
  • Solve problems
    • Develop their mathematical knowledge, in part through solving problems and evaluating the outcomes, including multi-step problems.

Common misconceptions

Typical slips to address during teaching and marking.

  • Multiplying numerators and denominators without cross-simplifying when a common factor could be cancelled first.
  • Inverting the wrong number when dividing, or treating division as subtraction of fractions.
  • Forgetting to convert mixed numbers to improper fractions before multiplying or dividing.
  • Leaving answers un-simplified or as improper fractions when a mixed number is expected in context.

Frequently asked questions

How do I use this scheme page in practice?

Use it to sequence teaching, align vocabulary and spot likely errors before they become habits. Then use the lessons below as the delivery route for the unit.

What should students already know before this unit?

They need confident ordering and the four operations on integers, decimals and fractions so new work focuses on structure—cross-simplifying, reciprocals and mixed-number forms—rather than basic arithmetic slips.

Where are the lesson presentations and worksheets?

Each lesson listed below has its own page with downloadable resources and, where available, online tasks. Access depends on your membership level.

Can I change the order of the lessons?

Yes if your timetable requires it—keep multiplying proper fractions and mixed numbers before division with reciprocals, and place the calculations and algebraic-fraction lessons after core number methods are secure.

Where can I find revision resources for this topic?

You can find additional revision lessons, exam-style questions and topic-based practice on the GCSE Maths Revision Hub. This is useful for consolidating learning after teaching the unit or for Year 11 exam preparation.

Lessons in this Multiplying and Dividing with Fractions scheme of work

  • Multiplying with Fractions
  • Multiplying Mixed Numbers and Top-Heavy Fractions
  • Dividing with Fractions using Visual Methods
  • Dividing Mixed Numbers and Top-Heavy Fractions
  • Calculations with Fractions and Mixed Numbers
  • Algebraic Fractions (Single Bracket)
  • Addition with Algebraic Fractions (Single Brackets)
  • Multiplying and Dividing with Algebraic Fractions (Single Brackets)

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