Fraction Calculator
Add, subtract, multiply, and divide fractions — simplified.
Perform arithmetic with two fractions and see the result as a simplified fraction, a mixed number, and a decimal.
Part of: Everyday Calculators
Enter the numbers you know below
Fields marked optional can be skipped; results update as you type
Result (simplified)
5/6
Mixed: 5/6 · Decimal: 0.833333
1/2 + 1/3 = 5/6.
- Fraction
- 5/6
- Mixed
- 5/6
- Decimal
- 0.833333
- Percentage
- 83.33%
Form comparisons
- Simplified
- 5/6
- Decimal
- 0.833333
- 1/2 as decimal
- 0.5
- 1/3 as decimal
- 0.333333
How to use
- Enter the numerator and denominator of each fraction.
- Pick an operator: +, −, ×, or ÷.
- The result is simplified automatically.
Examples
1/2 + 1/3
5/6 — decimal ≈ 0.8333
3/4 × 2/3
1/2
Before you trust the result
Check the inputs that matter most: dates, rates, units, costs, and any optional fields you skipped. A calculator can only work with the numbers entered here, so use the result as a decision check rather than a final answer when money, health, tax, legal, or safety consequences are involved.
If the result feels surprising, change one input at a time and watch which number moves. That usually shows the real lever behind the decision.
Next up
Frequently asked questions
› Does it handle negative fractions?
Yes. Enter a negative numerator.
› What happens with improper fractions?
They are shown as both an improper fraction and as a mixed number.
Tips & related reading
See the Everyday Calculators hub →Tips & how-tos
- Fraction Math Without Panic — The Core Shortcuts
- Why Fraction Fluency Drives Proportional Reasoning
- Fractions in Cooking, Building, and Sewing
- Ratio and Proportion Guide
- Fraction Arithmetic Guide
- Everyday Calculators Guide
- How to Calculate Percentage Increase
- How to Calculate a Percent of a Number
- Percentage Mental Math Tricks
- How to Calculate Age on a Date