GCSE Maths Fractions Revision Notes
Master GCSE Maths Fractions using simple revision notes, key facts and practice questions — all generated by AI for your exam.
Fractions represent a part of a whole and are written as one number over another, separated by a line. They can be simplified, added, subtracted, multiplied, or divided. Understanding fractions is essential for solving various mathematical problems.
Key Concepts
- 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 second fraction.
Simple Explanation
A fraction shows how many parts of a whole you have. The top number tells you how many parts you have, and the bottom number tells you how many equal parts the whole is divided into. You can work with fractions by adding, subtracting, multiplying, or dividing them, but you often need to make sure they have the same denominator for addition and subtraction.
Memory Trick
“Remember 'Keep, Change, Flip' for dividing fractions: Keep the first fraction, Change the division to multiplication, and Flip the second fraction.”
Flashcards
What is the numerator in a fraction?
Tap to reveal answer
Exam Questions
Describe and explain how to add fractions with different denominators. [6 marks]
6 marksView mark scheme hint▾
Identify the need for a common denominator, explain how to find it, demonstrate the addition process, and provide a final answer.
Explain how to simplify the fraction 18/24. [4 marks]
4 marksView mark scheme hint▾
Identify the GCD, show the division of both numerator and denominator, and state the simplified fraction.
What is meant by the term 'reciprocal' in fractions? [2 marks]
2 marksView mark scheme hint▾
Define reciprocal and provide an example.
Practice Quiz
What is 1/2 + 1/3?
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