When to use this calculator
Convert a finite decimal string into a reduced fraction. Supports up to eight decimal places and values whose scaled numerator is within the safe integer range. Repeating-decimal notation is not accepted.
Explore the fractions & mixed numbers calculators for other questions in this topic. For a related calculation, use the Fraction Calculator: Add, subtract, multiply or divide two fractions and simplify the answer.
PUTTING IT INTO PRACTICE
Decimal to Fraction: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| Finite decimal | 0.375 |
| Result | 3/8 |
- Check the input labels and enter the example values above.
- Apply the relationship: Write the decimal over 10 raised to its decimal places, then reduce..
- The result is 3/8 , rounded for display.
How to interpret your result
Supports up to eight decimal places and values whose scaled numerator is within the safe integer range. Repeating-decimal notation is not accepted.
Use positive nonzero denominators and whole-number numerator inputs. A mixed number combines a whole part and a fractional remainder. Decimal conversion here covers finite decimals, not a claim about an unmarked repeating pattern.
Frequently asked questions
Why simplify a fraction?
Simplification divides both parts by their greatest common divisor while preserving the value. It makes equivalent fractions easier to compare.
When is the decimal to fraction calculator useful?
Convert a finite decimal string into a reduced fraction. Supports up to eight decimal places and values whose scaled numerator is within the safe integer range. Repeating-decimal notation is not accepted.
How do I use the decimal to fraction calculator?
Enter finite decimal. The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Write the decimal over 10 raised to its decimal places, then reduce..
What should I check before using the result?
Supports up to eight decimal places and values whose scaled numerator is within the safe integer range. Repeating-decimal notation is not accepted.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
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