21
22
0.9(54)
21/22 as a decimal is 0.9(54)
Repeating
21/22 is 0.9(54), or 95.(45)%. It repeats with a period of 2 digits.
The digits in brackets repeat for ever. 0.1(6) is 0.16666… and 0.(3) is 0.3333…
Seen as a length
The whole is cut into as many parts as the denominator, and as many are filled as the numerator. The tick marks the halfway point.
- Decimal
- 0.9(54)
- Percent
- 95.(45)%
- Ratio
- 21 : 1
- Repeating part
- 54 (2)
- Degrees of a circle
- 343.(63)°
- Minutes of an hour
- 57.(27)
- Reciprocal
- 22/21 = 1 1/21
- Equivalent fractions
- 42/44, 63/66, 84/88, 105/110
Same denominator
Nearby values
How to read this
- The digits in brackets repeat for ever — 0.1(6) means 0.16666…
- If the denominator has no prime factors besides 2 and 5, the decimal stops.
- Equal fractions do not get separate pages: looking up 2/4 brings you to 1/2.
- A percentage is the same number times 100; degrees are the same number times 360.
Frequently asked questions
Q. What is 21/22 as a decimal?
0.9(54). The 2 digits in brackets repeat for ever.
Q. What is 21/22 as a percentage?
95.(45)%.
Q. Which fractions equal 21/22?
42/44, 63/66, 84/88, 105/110 … multiplying top and bottom by the same number leaves the value unchanged.
Q. What is the reciprocal of 21/22?
22/21, or 1 1/21 as a mixed number.