Decimal to fraction
Decimal to fraction: use decimal value. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
Continued fraction approximation with denominator ≤ 10⁹
Variables & units
- Decimal value
- Numeric value · minimum -1000000, maximum 1000000
Worked example
0.125 = 1/8.
Assumptions
Approximates the entered finite decimal; repeating decimals must be entered to sufficient precision.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
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