Fractions·8/21
8
21
=
0.(380952)

8/21 as a decimal is 0.(380952)

Repeating

8/21 is 0.(380952), or 38.(095238)%. It repeats with a period of 6 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.(380952)
Percent
38.(095238)%
Ratio
8 : 13
Repeating part
380952 (6)
Degrees of a circle
137.(142857)°
Minutes of an hour
22.(857142)
Reciprocal
21/8 = 2 5/8
Equivalent fractions
16/42, 24/63, 32/84, 40/105

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 8/21 as a decimal?

0.(380952). The 6 digits in brackets repeat for ever.

Q. What is 8/21 as a percentage?

38.(095238)%.

Q. Which fractions equal 8/21?

16/42, 24/63, 32/84, 40/105 … multiplying top and bottom by the same number leaves the value unchanged.

Q. What is the reciprocal of 8/21?

21/8, or 2 5/8 as a mixed number.