9
20
0.45
9/20 as a decimal is 0.45
Terminating
9/20 is 0.45, or 45%. It stops after 2 decimal places.
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
- 0.45
- Percent
- 45%
- Ratio
- 9 : 11
- Decimal places
- 2
- Degrees of a circle
- 162°
- Minutes of an hour
- 27
- Reciprocal
- 20/9 = 2 2/9
- Equivalent fractions
- 18/40, 27/60, 36/80, 45/100
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 9/20 as a decimal?
0.45. It stops after 2 decimal places.
Q. What is 9/20 as a percentage?
45%.
Q. Which fractions equal 9/20?
18/40, 27/60, 36/80, 45/100 … multiplying top and bottom by the same number leaves the value unchanged.
Q. What is the reciprocal of 9/20?
20/9, or 2 2/9 as a mixed number.