Memorise the most useful fraction-to-decimal conversions with interactive flashcards and quizzes. Learn eighths, sixteenths, twelfths and other common equivalents used in engineering, construction, woodworking and everyday maths.
Start learning in minutesWhat is 1/8 as a decimal?
1/8 = 0.125
What is 3/8 as a decimal?
3/8 = 0.375
What is 5/8 as a decimal?
5/8 = 0.625
What is 7/8 as a decimal?
7/8 = 0.875
What is 1/16 as a decimal?
1/16 = 0.0625
What is 1/3 as a decimal?
1/3 = 0.333 recurring
What is 2/3 as a decimal?
2/3 = 0.667 recurring
What is 1/12 as a decimal?
1/12 ≈ 0.083
Start with the foundation fractions: 1/2, 1/4, 3/4, 1/3 and 2/3.
Learn eighths as a family: 1/8, 3/8, 5/8 and 7/8 all follow predictable patterns.
Use sixteenths as extensions of eighths by repeatedly halving known values.
Group fractions into families instead of treating each conversion as a separate fact.
Practice converting fractions to decimals until the values become instantly recognisable.
Test yourself regularly using multiple-choice quizzes and timed challenges.
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💡 Memory Helper
Half of any quantity. The decimal sits exactly halfway between 0 and 1.
Each card includes memory helpers and mnemonics to make learning stick. Progress through all 23 cards at your own pace.
Start flashcardsMultiple choice questions to test your knowledge
Fractions have been used for thousands of years, long before decimal notation became widespread. Modern decimal numbers became popular through trade, engineering and science because they make calculations easier. Today, many industries still use fractions alongside decimals, making quick conversion skills surprisingly useful.
Knowing common decimal equivalents can save time when working with measurements, percentages and calculations. Builders frequently encounter fractions such as 5/8 and 11/16, while students, engineers and hobbyists often need to convert between fractional and decimal values without reaching for a calculator. Developing instant recognition of these equivalents makes mental arithmetic significantly easier.