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Country and language: Canada

Country and language

10/90 as a decimal and a percentage

10/90

= 0.1 = 11.1%

10/90 means 10 out of 90 equal parts. As a decimal it is 0.11…, and as a percentage 11.11…%.

10/90 on a fraction bar: 10 of 90 parts shaded

Ways to write it

Decimal
0.1
The digits under the line repeat forever.
Percentage
11.1%
Simplest form
1/9
As a division
10 ÷ 90
Equivalent fractions
2/18 = 3/27 = 4/36 = 5/45
Compared with one half
Less than 1/2
Reciprocal
90/10
10/90 of 180
20

How to work it out

  1. Divide the top number by the bottom number: 10 ÷ 90 = 0.11….
  2. To make a percentage, multiply by 100: 0.11… × 100 = 11.11…%.
  3. To simplify, divide the top and bottom by 10, their highest common factor: 10 ÷ 10 = 1 and 90 ÷ 10 = 9, so 10/90 = 1/9.

Quick check

  1. Is 10/90 more or less than 1/2?

    Show the answer

    Less than 1/2

  2. What is 10/90 of 180?

    Show the answer

    20

  3. 10/90 = ?/180

    Show the answer

    20

Practise with a game

Frequently asked questions

What is 10/90 as a decimal?

10/90 as a decimal is 0.11….

What is 10/90 as a percentage?

10/90 as a percentage is 11.11…%.

What is 10/90 in its simplest form?

10/90 in its simplest form is 1/9.