This key facts covers Notation within Recurring Decimals for GCSE Mathematics. Revise Recurring Decimals in Number for GCSE Mathematics with 14 exam-style questions and 11 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 2 of 6 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 6
Practice
14 questions
Recall
11 flashcards
Notation
| Decimal | Meaning | Fraction |
|---|---|---|
| 0.3̇ | 0.333333... | 1/3 |
| 0.1̇2̇ | 0.121212... (12 repeats) | 12/99 = 4/33 |
| 0.16̇ | 0.1666... (only 6 repeats) | 1/6 |
A dot over a single digit means that digit repeats. Dots over two digits means those two digits repeat together.
Keep building this topic
Read this section alongside the surrounding pages in Recurring Decimals. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Recurring Decimals
Which of these fractions gives a recurring decimal when you divide?
Explain why 1/6 gives a recurring decimal. You must refer to prime factors in your answer.
Quick Recall Flashcards
14 questions on Recurring Decimals — practise free
Instant marking, adaptive difficulty, and 11 spaced repetition flashcards. Free until your GCSEs.
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