2
5
0.4
2/5 as a decimal is 0.4
Terminating
2/5 is 0.4, or 40%. 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
- 0.4
- Percent
- 40%
- Ratio
- 2 : 3
- Decimal places
- 1
- Degrees of a circle
- 144°
- Minutes of an hour
- 24
- Reciprocal
- 5/2 = 2 1/2
- Equivalent fractions
- 4/10, 6/15, 8/20, 10/25
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 2/5 as a decimal?
0.4. It stops after 1 decimal places.
Q. What is 2/5 as a percentage?
40%.
Q. Which fractions equal 2/5?
4/10, 6/15, 8/20, 10/25 … multiplying top and bottom by the same number leaves the value unchanged.
Q. What is the reciprocal of 2/5?
5/2, or 2 1/2 as a mixed number.