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Securing understanding of multiplication with fractions
Maths•Key Stage 3•Arithmetic procedures with fractions
Lesson Description
I can multiply unit, non-unit and improper fractions.
Lesson Overview
Key learning points
- When multiplying you multiply the numerators together and the denominators together.
- Any value can be written as a fraction with one as the denominator.
- You can use equivalent fractions to be more efficient.
Keywords
- Product
- A product is the result of two or more numbers multiplied together.
- Commutative
- An operation is commutative if the values it is operating on can be written in either order without changing the calculation.
- Prime factors
- Prime factors are the factors of a number that are, themselves, prime.
Common mistakes
When multiplying a fraction by an integer multiplying the numerator and denominator by the integer.
If they do this they will have effectively multiplied by 1. Use an example to show you end up with the same fraction that you started with.
Lesson Video
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