Maths

Stretch – Reverse Fractions: Finding the Whole

Stretch (universal 11+): find the whole amount when a fraction of it is known, including multi-step contexts.

MathsAge 11+25 minutes

What this topic covers

  • Find one part from a known fraction, then multiply up to the whole.
  • Solve 'what fraction is left' then 'find the whole' problems.
  • Use bar models for reverse-fraction problems.

Core concept summaries

Key ConceptsOne Part, Then the WholeWhat Is Left, Then the WholeMulti-Step and the Forward Trap

Practice formats pupils may meet

NeurofiED uses varied practice to help pupils apply the idea actively, check understanding and build confidence over time.

clozematchingquiz

Example quiz question

⅖ of a number is 16. What is the number?

  1. 32
  2. 6.4
  3. 80
  4. 40
Show the answer

Answer: D. 40

⅕ is 8.