1
2
0.5
1/2 as a decimal is 0.5
Terminating
1/2 is 0.5, or 50%. It stops after 1 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
- 0.5
- Percent
- 50%
- Ratio
- 1 : 1
- Decimal places
- 1
- Degrees of a circle
- 180°
- Minutes of an hour
- 30
- Reciprocal
- 2/1 = 2
- Equivalent fractions
- 2/4, 3/6, 4/8, 5/10
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 1/2 as a decimal?
0.5. It stops after 1 decimal places.
Q. What is 1/2 as a percentage?
50%.
Q. Which fractions equal 1/2?
2/4, 3/6, 4/8, 5/10 … multiplying top and bottom by the same number leaves the value unchanged.
Q. What is the reciprocal of 1/2?
2/1, or 2 as a mixed number.