80/90 as a decimal and a percentage
80/90
= 0.8 = 88.8%
80/90 means 80 out of 90 equal parts. As a decimal it is 0.88…, and as a percentage 88.88…%.
Ways to write it
- Decimal
- 0.8
The digits under the line repeat forever. - Percentage
- 88.8%
- Simplest form
- 8/9
- As a division
- 80 ÷ 90
- Equivalent fractions
- 16/18 = 24/27 = 32/36 = 40/45
- Compared with one half
- More than 1/2
- Reciprocal
- 90/80
- 80/90 of 180
- 160
How to work it out
- Divide the top number by the bottom number: 80 ÷ 90 = 0.88….
- To make a percentage, multiply by 100: 0.88… × 100 = 88.88…%.
- To simplify, divide the top and bottom by 10, their highest common factor: 80 ÷ 10 = 8 and 90 ÷ 10 = 9, so 80/90 = 8/9.
Quick check
Is 80/90 more or less than 1/2?
Show the answer
More than 1/2
What is 80/90 of 180?
Show the answer
160
80/90 = ?/180
Show the answer
160
Practise with a game
Frequently asked questions
What is 80/90 as a decimal?
80/90 as a decimal is 0.88….
What is 80/90 as a percentage?
80/90 as a percentage is 88.88…%.
What is 80/90 in its simplest form?
80/90 in its simplest form is 8/9.