20/42 as a decimal and a percentage
20/42
= 0.476190 = 47.619047%
20/42 means 20 out of 42 equal parts. As a decimal it is 0.476190…, and as a percentage 47.619047…%.
Ways to write it
- Decimal
- 0.476190
The digits under the line repeat forever. - Percentage
- 47.619047%
- Simplest form
- 10/21
- As a division
- 20 ÷ 42
- Equivalent fractions
- 30/63 = 40/84 = 50/105 = 10/21
- Compared with one half
- Less than 1/2
- Reciprocal
- 42/20
- 20/42 of 84
- 40
How to work it out
- Divide the top number by the bottom number: 20 ÷ 42 = 0.476190….
- To make a percentage, multiply by 100: 0.476190… × 100 = 47.619047…%.
- To simplify, divide the top and bottom by 2, their highest common factor: 20 ÷ 2 = 10 and 42 ÷ 2 = 21, so 20/42 = 10/21.
Quick check
Is 20/42 more or less than 1/2?
Show the answer
Less than 1/2
What is 20/42 of 84?
Show the answer
40
20/42 = ?/84
Show the answer
40
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Frequently asked questions
What is 20/42 as a decimal?
20/42 as a decimal is 0.476190….
What is 20/42 as a percentage?
20/42 as a percentage is 47.619047…%.
What is 20/42 in its simplest form?
20/42 in its simplest form is 10/21.