18/42 as a decimal and a percentage
18/42
= 0.428571 = 42.857142%
18/42 means 18 out of 42 equal parts. As a decimal it is 0.428571…, and as a percentage 42.857142…%.
Ways to write it
- Decimal
- 0.428571
The digits under the line repeat forever. - Percentage
- 42.857142%
- Simplest form
- 3/7
- As a division
- 18 ÷ 42
- Equivalent fractions
- 6/14 = 9/21 = 12/28 = 15/35
- Compared with one half
- Less than 1/2
- Reciprocal
- 42/18
- 18/42 of 252
- 108
How to work it out
- Divide the top number by the bottom number: 18 ÷ 42 = 0.428571….
- To make a percentage, multiply by 100: 0.428571… × 100 = 42.857142…%.
- To simplify, divide the top and bottom by 6, their highest common factor: 18 ÷ 6 = 3 and 42 ÷ 6 = 7, so 18/42 = 3/7.
Quick check
Is 18/42 more or less than 1/2?
Show the answer
Less than 1/2
What is 18/42 of 252?
Show the answer
108
18/42 = ?/84
Show the answer
36
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Frequently asked questions
What is 18/42 as a decimal?
18/42 as a decimal is 0.428571….
What is 18/42 as a percentage?
18/42 as a percentage is 42.857142…%.
What is 18/42 in its simplest form?
18/42 in its simplest form is 3/7.