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Algebraic fractions

Free Printable Algebraic fractions PDF Worksheets, Revision Guide & GCSE Past Paper Questions (Grade 7)

Download free algebraic fractions worksheets (PDF), GCSE maths past paper questions and worked solutions for Algebraic fractions (7D). This is a Grade 7 algebra topic from the GCSE questions by topic collection for Higher tier GCSE Maths (Edexcel, AQA, OCR and IGCSE).

The free PDF worksheets table below brings together printable question booklets (Qs) and worked answers or mark schemes (Ans) from MathsLinks, Maths Genie, Maths4Everyone, Corbett Maths, Maths Made Easy, Dr Frost, Metatutor, 1st Class Maths, GCSE Maths Rocket, Dr Austin, E Classroom and PMT, along with past paper question booklets.

Below the worksheet links you can read our algebraic fractions revision notes and worked examples with diagrams, try real GCSE past paper algebraic fractions questions with step-by-step solutions, or download a PDF of all algebraic fractions worksheet links.

Free Algebraic fractions PDF Worksheets & Answers

Grade 7 • Topic 7D
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GCSE Maths Grade 7 Revision Notes & Method

Guide to Algebraic fractions: Explanation, Diagrams & Worked Examples

Download Printable One Page Guide (PDF)

Explanation:

Never cancel individual terms across a + or − sign; always factorise the numerator and denominator fully first, then cancel common bracketed factors. When multiplying fractions, factorise and cancel diagonally or vertically; when dividing, flip the second fraction and multiply.

To add or subtract algebraic fractions, rewrite both fractions over their lowest common denominator (usually the product of their linear denominators), expand the numerators carefully (watching out for a minus sign in front of a bracket), and simplify.

Example 1: Simplify fully 2x2 + 5x − 3x2 − 9

Solution:

Factorise numerator: 2x2 + 6x − x − 3 = (2x − 1)(x + 3)
Factorise denominator (DOTS): x2 − 9 = (x − 3)(x + 3)
= (2x − 1)(x + 3)(x − 3)(x + 3)
Cancel common factor (x + 3):
Answer: 2x − 1x − 3

Example 2: Write 4x − 2 − 3x + 1 as a single fraction.

Solution:

Common denominator is (x − 2)(x + 1):
= 4(x + 1) − 3(x − 2)(x − 2)(x + 1)
Expand top: 4x + 4 − 3x + 6 = x + 10
Answer: x + 10(x − 2)(x + 1)
Scanned GCSE Exam Questions & Worked Solutions

GCSE Past Paper Algebraic fractions Questions & Answers

Past Paper Example 1 IGCSE Jun 2025 1H Q12 3 marks
Express 54 + x - 36x as a single fraction in its simplest form.
Worked Solution & Mark Scheme (3 marks)
15x / 12x + 2(x – 3) / 12x = (15x + 2x – 6) / 12x = (17x – 6) / 12x M2 A1
Answer: 17x - 612x
Past Paper Example 2 AQA Nov 2023 3H Q22 2 marks
Write 72a2 - 35a as a single fraction in its simplest form.
Worked Solution & Mark Scheme (2 marks)
Common denominator is 10a²: M1
(7 × 5) / (10a²) – (3 × 2a) / (10a²) = (35 – 6a) / (10a²). A1
Answer: Answer 35 - 6a10a2
Past Paper Example 3 GCSE Nov 2018 2H Q12 6 marks
(a) Simplify [(4x² – 9)/(6x + 9)] × [2x/(x² – 3x)] in the form (ax + b)/(cx + d). (3) (b) Express 3/(x + 1) + 1/(x – 2) – 4/x as a single fraction. (3)
(a) Write 4x2 - 96x + 9 × 2xx2 - 3x in the form ax + bcx + d where a, b, c and d are integers. [3 marks]
(b) Express 3x + 1 + 1x - 2 - 4x as a single fraction in its simplest form. [3 marks]
Worked Solution & Mark Scheme (6 marks)
Part (a) Solution:
[(2x – 3)(2x + 3) / 3(2x + 3)] × [2x / x(x – 3)] = 2(2x – 3) / 3(x – 3) = (4x – 6)/(3x – 9) M2 A1
Answer (a): 4x - 63x - 9
Part (b) Solution:
[3x(x – 2) + x(x + 1) – 4(x + 1)(x – 2)] / [x(x + 1)(x – 2)] = (3x² – 6x + x² + x – 4x² + 4x + 8) / [x(x + 1)(x – 2)] = (8 – x) / [x(x + 1)(x – 2)] M2 A1
Answer (b): 8 - xx(x + 1)(x - 2)

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