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fittings Arithmetic Worksheet
x402
fittings Arithmetic Worksheet is a paid API for AI agents from fittings.sh, paid per call via x402, $0.00446/call, status unknown (last checked 2026-09-14).
Runs a sequence of named arithmetic steps in exact rational arithmetic, returning every intermediate value as a fraction, decimal, and repeating expansion.
Price / call$0.00446
Success—
StatusUnknown
How this service works
Runs a sequence of named arithmetic steps in exact rational arithmetic, returning every intermediate value as a fraction and a decimal, plus the repeating expansion where the result has one.
Output
Returns each named step with its exact rational value as a fraction (numerator/denominator), a decimal approximation to the requested precision, and where applicable the repeating block of the decimal expansion. All intermediate values in the sequence are included, not just the final result.
Example use cases
Loan interest calculation breakdown
“Walk me through these steps in exact rational arithmetic, showing fractions and decimals to 30 places: loan = 15000, monthly_rate = 1/240, monthly_interest = loan * monthly_rate, balance = loan + monthly_interest”
Physics formula step-by-step tracing
“Compute these physics steps with full rational precision, 20 decimal places: mass = 3/4, acceleration = 9/2, force = mass * acceleration, work = force * 8”
Recipe scaling with exact fractions
“Run these recipe scaling steps in exact rational arithmetic showing all the fractions and repeating decimals: base = 3/8, servings = 7, scaled = base * servings, per_person = scaled / 5”
Technical details
Endpoint
POSThttps://fittings.sh/v1/calc/worksheetWhen to prefer
Choose this endpoint when you need exact rational arithmetic (no floating-point rounding), want to trace every intermediate named step, or need the repeating decimal expansion of a result. Prefer it over general-purpose calculators or code-execution endpoints when auditability, exact fractions, or educational step-by-step transparency is required.
Side effects
- More than 24 steps provided — request is rejected
- Expression syntax error (unrecognized operator or malformed expression) — parse error returned
- Division by zero in any step — error returned for that step
- Precision out of range (negative or greater than 200) — validation error
- Circular or self-referencing variable names — error returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| steps | array | Up to 24 statements, each 'name = expression' or a bare expression over + - * / ^ and parentheses. A single string split on newlines or semicolons is also accepted. |
| precision | number | Decimal places, 0-200, default 20 |
Tags
x402
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