18/20 as a decimal and a percentage
18/20
= 0.9 = 90%
18/20 means 18 out of 20 equal parts. As a decimal it is 0.9, and as a percentage 90%.
Ways to write it
- Decimal
- 0.9
- Percentage
- 90%
- Simplest form
- 9/10
- As a division
- 18 ÷ 20
- Equivalent fractions
- 27/30 = 36/40 = 45/50 = 9/10
- Compared with one half
- More than 1/2
- Reciprocal
- 20/18
- 18/20 of 120
- 108
How to work it out
- Divide the top number by the bottom number: 18 ÷ 20 = 0.9.
- To make a percentage, multiply by 100: 0.9 × 100 = 90%.
- To simplify, divide the top and bottom by 2, their highest common factor: 18 ÷ 2 = 9 and 20 ÷ 2 = 10, so 18/20 = 9/10.
Quick check
Is 18/20 more or less than 1/2?
Show the answer
More than 1/2
What is 18/20 of 120?
Show the answer
108
18/20 = ?/40
Show the answer
36
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Frequently asked questions
What is 18/20 as a decimal?
18/20 as a decimal is 0.9.
What is 18/20 as a percentage?
18/20 as a percentage is 90%.
What is 18/20 in its simplest form?
18/20 in its simplest form is 9/10.