Inputs
Work with two fractions and choose an operation.
Fraction A
Fraction B
Results
Reduced fraction and decimal form.
Fraction
5/6
Decimal
0.83
Mixed
0 5/6
Decimal to fraction
Fraction
1/2
Simplify a fraction
Reduced
3/4
Common fractions
| Fraction | Decimal | Percent |
|---|---|---|
| 1/2 | 0.5 | 50% |
| 1/3 | 0.33 | 33.33% |
| 2/3 | 0.67 | 66.67% |
| 1/4 | 0.25 | 25% |
| 3/4 | 0.75 | 75% |
| 1/5 | 0.2 | 20% |
| 2/5 | 0.4 | 40% |
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How this calculator works
Performs add, subtract, multiply, and divide on two fractions with optional mixed numbers. It reduces results, returns decimals, and converts decimal inputs to fractions.
Quick guide
Jump straight to the section you need, then return to the calculator.
Inputs
- Fraction A numerator and denominator
- Fraction B numerator and denominator
- Optional whole number inputs for mixed numbers
- Selected operation (add, subtract, multiply, divide)
- Decimal value to convert to a fraction
Outputs
- Reduced fraction result
- Decimal form of the result
- Mixed number output
- Decimal to fraction conversion
Assumptions
- Denominators cannot be zero
- Results are reduced using greatest common divisor
Tips
- Reduce inputs first to avoid overflow
- Check for zero denominators before dividing
- Use decimal output for quick comparisons
Formula guide
Use these formulas to audit the output or explain it to someone else.
3 formulas
Usage examples
Review a ready-made scenario, copy it, then tweak inputs to match your case.
Example
Add fractions
Inputs
- Fraction A 1/2
- Fraction B 1/3
- Operation add
Outputs
- Result equals 5/6
- Decimal about 0.833
The calculator reduces the result automatically.
Example
Divide fractions
Inputs
- Fraction A 3/4
- Fraction B 2/5
- Operation divide
Outputs
- Result equals 15/8
- Decimal about 1.875
Dividing by a fraction multiplies by its reciprocal.
Common fractions
| Fraction | Decimal |
|---|---|
| 1/2 | 0.50 |
| 1/3 | 0.33 |
| 2/3 | 0.67 |
| 3/4 | 0.75 |
| 5/8 | 0.625 |
Decimals are rounded for quick comparison.
Decimal equivalents
Focus point
1/2
0.5
Position
#1 of 4
Original order
Share of total
19.67%
Total: 2.54
Use the chart to compare fraction sizes quickly.
References
- Basic fraction arithmetic
FAQ
Common questions
What does the Fraction Calculator do?
Performs add, subtract, multiply, and divide on two fractions with optional mixed numbers. It reduces results, returns decimals, and converts decimal inputs to fractions. It is part of our math toolkit.
What inputs do I need?
Typical inputs include Fraction A numerator and denominator, Fraction B numerator and denominator, Optional whole number inputs for mixed numbers.
How are the results calculated?
We follow the formulas and assumptions outlined in the "How this calculator works" section. You will see outputs like Reduced fraction result, Decimal form of the result, Mixed number output.
Can I share or download the results?
Use the Copy link or Print buttons to share your results. If a table or chart appears, you can download the data as CSV.
Is my data stored?
No. Calculations run in your browser and we do not store your inputs.
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