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 parts of a whole and are written as two numbers separated by a line. The top number is called the numerator, and the bottom number is the denominator. Understanding fractions is essential for solving various mathematical problems.
Key Concepts
- 1A fraction consists of a numerator and a denominator.
- 2Fractions can be added, subtracted, multiplied, and divided.
- 3To add or subtract fractions, they must have a common denominator.
- 4Fractions can be simplified by dividing the numerator and denominator by their greatest common factor.
- 5Improper fractions can be converted to mixed numbers.
Simple Explanation
A fraction shows how many parts of a whole we have. The top number tells us how many parts we have (numerator), and the bottom number tells us how many equal parts the whole is divided into (denominator). For example, in the fraction 3/4, we have 3 parts out of a total of 4 parts. Fractions can be added, subtracted, multiplied, and divided, but sometimes we need to make sure they have the same denominator first.
Memory Trick
“Remember 'Top over Bottom' to recall that the numerator (top) tells you how many parts you have, while the denominator (bottom) tells you how many equal parts make a whole.”
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, demonstrate finding the common denominator, show conversion of fractions, and perform the addition.
Explain how to simplify the fraction 12/16. [4 marks]
4 marksView mark scheme hint▾
Identify the greatest common factor, show division of numerator and denominator by that factor, and present the simplified fraction.
What is meant by a mixed number? [2 marks]
2 marksView mark scheme hint▾
Define a mixed number and provide an example.
Practice Quiz
What is 1/2 + 1/3?
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