Dodgy fractions

Last updated: 15/11/2023
Contributor: Bob Jackson
Dodgy fractions
Main Subject
Key stage
Category
Algebra: Proof
Inside
Includes answers
Resource type
Worksheet
Student activity
Maths
Reasoning

An interesting investigation reinforcing how to subtract fractions correctly, by exploring a family of fractions for which the commonly used incorrect method of subtract the numerators, subtract the denominators gives the correct answer. Students must have prior fluency in the correct method to avoid confusion.

Proving your findings requires factorising quadratics and simplifying algebraic fractions.

All reviews

Have you used this resource?

Brilliant resource. Well structured, pupils needed a few hints but still enjoyed it.

27/11/2013

5

5

5

Brilliant resource. Well structured, pupils needed a few hints but still enjoyed it.

27/11/2013

5

5

5