1/18 as a decimal and a percentage
1/18
= 0.05 = 5.5%
1/18 means 1 out of 18 equal parts. As a decimal it is 0.055…, and as a percentage 5.55…%.
Ways to write it
- Decimal
- 0.05
The digits under the line repeat forever. - Percentage
- 5.5%
- Simplest form
- Already in its simplest form
- As a division
- 1 ÷ 18
- Equivalent fractions
- 2/36 = 3/54 = 4/72 = 5/90
- Compared with one half
- Less than 1/2
- Reciprocal
- 18/1
- 1/18 of 90
- 5
How to work it out
- Divide the top number by the bottom number: 1 ÷ 18 = 0.055….
- To make a percentage, multiply by 100: 0.055… × 100 = 5.55…%.
- 1 and 18 have no common factor bigger than 1, so 1/18 cannot be simplified.
Quick check
Is 1/18 more or less than 1/2?
Show the answer
Less than 1/2
What is 1/18 of 90?
Show the answer
5
1/18 = ?/36
Show the answer
2
Practise with a game
Frequently asked questions
What is 1/18 as a decimal?
1/18 as a decimal is 0.055….
What is 1/18 as a percentage?
1/18 as a percentage is 5.55…%.
What is 1/18 in its simplest form?
1/18 is already in its simplest form.