AQA Maths Fractions Revision Notes

• 1A fraction consists of a numerator (top number) and a denominator (bottom number).
• 2Fractions can be simplified by dividing both the numerator and denominator by their greatest common divisor (GCD).
• 3To add or subtract fractions, they must have a common denominator.
• 4Multiplying fractions involves multiplying the numerators together and the denominators together.
• 5Dividing fractions requires multiplying by the reciprocal of the divisor.

A fraction shows how many parts of a whole we have. The top number is called the numerator, which tells us how many parts we have, and the bottom number is the denominator, which tells us how many equal parts make up the whole. To work with fractions, we often need to find a common denominator for adding or subtracting them, and we can multiply or divide them using simple rules.