Fractions·3/7
3
7
=
0.(428571)

3/7 as a decimal is 0.(428571)

Repeating

3/7 is 0.(428571), or 42.(857142)%. 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.(428571)
Percent
42.(857142)%
Ratio
3 : 4
Repeating part
428571 (6)
Degrees of a circle
154.(285714)°
Minutes of an hour
25.(714285)
Reciprocal
7/3 = 2 1/3
Equivalent fractions
6/14, 9/21, 12/28, 15/35

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 3/7 as a decimal?

0.(428571). The 6 digits in brackets repeat for ever.

Q. What is 3/7 as a percentage?

42.(857142)%.

Q. Which fractions equal 3/7?

6/14, 9/21, 12/28, 15/35 … multiplying top and bottom by the same number leaves the value unchanged.

Q. What is the reciprocal of 3/7?

7/3, or 2 1/3 as a mixed number.