Edexcel IGCSE Maths 复习笔记 2.6.2 Algebraic Fractions - Simplifying Fractions
What is an algebraic fraction?
- An algebraic fraction is simply a fraction with an algebraic expression on the top (numerator) and/or the bottom (denominator)
How do you simplify an algebraic fraction?
- When you have a single Algebraic Fraction (or two multiplied together) you may be able to simplify things by cancelling common factors
- Factorise top and bottom
- Cancel common factorsThat’s it!
If you are asked to simplify an algebraic fraction and have to factorise the top or bottom it is very likely that one of the factors will be the same on the top and the bottom – you can use this to help you factorise difficult quadratics!