This exam tips covers Common Mistakes to Avoid within Ratio Basics for GCSE Mathematics. Revise Ratio Basics in Number for GCSE Mathematics with 12 exam-style questions and 22 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 13 of 15 in this topic. Treat this as a marking guide for what examiners are looking for, not just a fact list.
Topic position
Section 13 of 15
Practice
12 questions
Recall
22 flashcards
Common Mistakes to Avoid
Convert to fractions or find common format first
3:5 means first is 3 parts, second is 5 parts
Always convert to same units before simplifying
Always give ratio in simplest form
Keep building this topic
Read this section alongside the surrounding pages in Ratio Basics. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Ratio Basics
Write the ratio 12:18 in its simplest form.
Explain the difference between the ratio 3:5 and the ratio 5:3.
Quick Recall Flashcards
12 questions on Ratio Basics — practise free
Instant marking, adaptive difficulty, and 22 spaced repetition flashcards. Free until your GCSEs.
Try PrepWise Free