A lesson on multiplying fractions using cross cancellation. Step by step examples show how to find a common factor of a numerator and a denominator, cancel before multiplying, and cancel more than once so the answer is already in its simplest form.
What this presentation covers
- what cross cancellation is
- finding a common factor of a numerator and a denominator
- cancelling before you multiply
- cancelling more than once
- worked examples
Level: KS2 / KS3
Slides: 6
Format: PowerPoint (.pptx)
Contributed by: Brian W