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Fraction to Repeating Decimal

Our Fraction to Repeating Decimal Calculator helps you convert any common fraction into its decimal form, clearly showing if and where the digits repeat. It's a handy tool for understanding rational numbers and their decimal representations.

Top number of the fraction

Bottom number of the fraction (must be non-zero)

How it works

Our Fraction to Repeating Decimal Calculator helps you convert any common fraction into its decimal form, clearly showing if and where the digits repeat. It's a handy tool for understanding rational numbers and their decimal representations.


The Formula
To convert a fraction (a/b) to a decimal, you simply divide the numerator (a) by the denominator (b). If the division doesn't terminate, the decimal will eventually repeat a sequence of digits.

Worked Example
  1. Convert 1/7 to a Decimal

    Let's convert the fraction 1/7. Dividing 1 by 7 gives 0.142857142857. The sequence '142857' repeats indefinitely. Our calculator would show this as 0.(142857) with parentheses over the repeating part.


Tips, Assumptions & Limitations
  • Enter the numerator and denominator as whole numbers.
  • The calculator will automatically identify the repeating block.
  • Use this to check your homework on rational numbers.
FAQ

A repeating decimal (also known as a recurring decimal) is a decimal number that, after a certain point, has a sequence of one or more digits that repeats infinitely. For example, 1/3 is 0.333. where '3' repeats, and 1/7 is 0.142857142857. where '142857' repeats.

Repeating decimals are typically written by placing a bar over the repeating block of digits. For example, 0.333. is written as 0.3̅, and 0.142857142857. is written as 0.142857̅. In text, sometimes parentheses are used, like 0.3(3) or 0.142857(142857).

Yes, every rational number (which is any number that can be expressed as a fraction) will result in either a terminating decimal or a repeating decimal. You'll never get a decimal that goes on forever without repeating if you start with a simple fraction.

Companion article

Fraction to Repeating Decimal Converter: Understand Rational Numbers

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