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Fraction from Decimal Converter
x402
Fraction from Decimal Converter is a paid API for AI agents from fraction.openverbs.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Converts a decimal string (including repeating decimals) to its exact reduced fraction form
Price / call$0.002
Success—
StatusUnknown
How this service works
Convert a decimal string to an exact reduced fraction. For a repeating decimal, set repeat to the number of trailing fractional digits that repeat (e.g. value='0.1666', repeat=1 → 1/6; value='0.3', repeat=1 → 1/3). A non-numeric value is a clean 400.
Output
Returns the exact reduced fraction representation of the input decimal, expressed as a numerator and denominator in lowest terms. For repeating decimals, the repeat parameter ensures the mathematically exact rational equivalent is computed (e.g. 0.1666 with repeat=1 yields 1/6).
Example use cases
Exact fraction from repeating decimal
“I have the decimal 0.3 with the last digit repeating — what is that as an exact reduced fraction?”
Simplify terminating decimal to fraction
“Convert 0.625 to a fraction in its simplest form, no repeating digits.”
Negative decimal to fraction
“What is -3.5 expressed as a reduced fraction?”
Technical details
Endpoint
POSThttps://fraction.openverbs.com/v1/from-decimalWhen to prefer
Use this endpoint when you need the exact rational fraction equivalent of a decimal number, especially for repeating decimals where floating-point arithmetic would lose precision. Prefer this over manual computation or general-purpose math libraries when you need a guaranteed reduced result for a single decimal conversion without setting up any math environment.
Side effects
- Non-numeric string value returns a clean HTTP 400 error
- Missing required 'value' field returns a validation error
- repeat count exceeding 1024 or below 0 returns a validation error
- value string longer than 1024 characters returns a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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