Fractions, decimals & percentages
What fractions, decimals & percentages means
In this skill, you change a fraction, decimal or percentage into another form. This helps you compare amounts, solve word problems and check answers quickly.
What you will practise
- Change simple fractions into percentages
- Change decimals into percentages using place value
- Change percentages into fractions in simplest form
- Move between all three forms in one question
Before you start
You should already be comfortable with basic fractions, decimals and simplifying fractions. It also helps to know that percent means 'out of 100'.
Not confident yet? Work through Percentage of a number first.
Worked example
One question from this skill's own question bank, shown with its full working.
What is 1/2 as a percentage?
- 25%
- 50%
- 75%
- 20%
Working: 1/2 = 0.5 = 50%.
Common mistakes to avoid
- Forgetting to multiply a decimal by 100 when finding a percentage.
- Leaving fractions unsimplified after changing from a percentage.
- Writing the percent sign with a decimal instead of the whole number form.
- Mixing up 1/4 and 1/25 when changing between fraction and percentage.
Curriculum and exam alignment
This topic usually appears in Junior High School work on fractions, decimals and percentages before more applied percentage problems. It supports the kind of calculation and interpretation that may come up in the BECE.
Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.
Related skills
Other Percentages skills in Maths, at the same point in the course.
Other Maths topics
Related study guides
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Exams that assess fractions, decimals & percentages
Junior High work on this skill feeds directly into these exam papers. Each page lists the Maths topics that appear on it.
How this page was produced
This text was drafted with AI assistance from the questions and topics already stored on the platform. A subject-specialist review is scheduled but has not yet been recorded, so we do not claim it here.
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Practise fractions, decimals & percentages
8 questions with a worked answer after every attempt, and a SmartScore that tracks how close you are to mastery.
