Sign inBook a free assessment

Country and language

Country and language: Canada

Country and language

9/20 as a decimal and a percentage

9/20

= 0.45 = 45%

9/20 means 9 out of 20 equal parts. As a decimal it is 0.45, and as a percentage 45%.

9/20 on a fraction bar: 9 of 20 parts shaded

Ways to write it

Decimal
0.45
Percentage
45%
Simplest form
Already in its simplest form
As a division
9 ÷ 20
Equivalent fractions
18/40 = 27/60 = 36/80 = 45/100
Compared with one half
Less than 1/2
Reciprocal
20/9
9/20 of 80
36

How to work it out

  1. Divide the top number by the bottom number: 9 ÷ 20 = 0.45.
  2. To make a percentage, multiply by 100: 0.45 × 100 = 45%.
  3. 9 and 20 have no common factor bigger than 1, so 9/20 cannot be simplified.

Quick check

  1. Is 9/20 more or less than 1/2?

    Show the answer

    Less than 1/2

  2. What is 9/20 of 80?

    Show the answer

    36

  3. 9/20 = ?/40

    Show the answer

    18

Practise with a game

Frequently asked questions

What is 9/20 as a decimal?

9/20 as a decimal is 0.45.

What is 9/20 as a percentage?

9/20 as a percentage is 45%.

What is 9/20 in its simplest form?

9/20 is already in its simplest form.