A decimal fraction in which a figure or group of figures is repeated indefinitely, as in 0.666... or as in 1.851851851...
- As a number that cannot be written as a repeating decimal or a finite decimal pi is irrational: it cannot be written as a fraction (the ratio of two integers).
- If the decimal is a repeating decimal instead of a terminating one, we can still convert it to a fraction.
- All repeating decimals like 0.575757575757…, all integers like 46, and all finite decimals like 0.472 are rational.
Definition of repeating decimal in:
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