About This Calculator
This all-in-one fraction calculator lets you perform every major operation involving fractions in one place. Whether you need to add, subtract, multiply, divide, simplify, or convert between decimals, percentages, and fractions — this tool has you covered.
It supports mixed numbers, improper fractions, negative values, and always provides results in multiple formats: improper fraction, mixed number, and decimal — along with step-by-step solutions.
How It Works
Choose the section that matches your goal:
- Perform arithmetic: Add, subtract, multiply or divide two fractions.
- Simplify: Reduce a fraction to lowest terms.
- Convert: Turn a decimal or percent into a fraction, or convert a fraction into a decimal or percent.
Each tool auto-normalizes input, converts to improper fractions when needed, and outputs the answer in simplified form with steps.
Frequently Asked Questions
Will the result always be simplified?
Yes. All answers are automatically reduced to their lowest terms, including mixed numbers and improper fractions. This ensures the result is as clear and concise as possible.
Does it support mixed and improper fractions?
Yes. You can enter and receive results in either mixed number or improper fraction format. The calculator will also convert between them when relevant, showing both formats for clarity.
How do I enter negative fractions?
If the fraction has a nonzero whole number part, place the minus sign in front of the integer (e.g., -1 3/4). If it's a proper or improper fraction, you can enter the minus sign directly before the numerator (e.g., -5/8).
Can I convert between fractions and decimals?
Yes. The calculator includes bidirectional conversion between fractions and decimals. It handles repeating decimals, simplifies results, and displays both approximate and exact values where needed.
Can I convert between percentages and fractions?
Yes. You can input a percent like 25% to get the fraction 1/4, or input a fraction like 1/8 to get 12.5%. Both directions are supported with simplification and step-by-step explanation.
Common Fraction to Decimal Conversion Table
The table below shows exact and approximate decimal values of common fractions. Repeating decimals use overline notation.
| Fraction | Decimal | Type |
|---|---|---|
| 1/2 | = 0.5 | Finite decimal |
| 1/3 | = 0. 3 | Repeating decimal |
| 1/4 | = 0.25 | Finite decimal |
| 1/5 | = 0.2 | Finite decimal |
| 1/6 | = 0.1 6 | Repeating decimal |
| 1/7 | ≈ 0.143 | Non-repeating (approx.) |
| 1/8 | = 0.125 | Finite decimal |
| 1/9 | = 0. 1 | Repeating decimal |
| 1/10 | = 0.1 | Finite decimal |
Common Percent to Fraction Conversion Table
The table below shows how common percentages convert to simplified fractions. Mixed numbers are shown when needed.
| Percent | Fraction |
|---|---|
| 10% | 1/10 |
| 12.5% | 1/8 |
| 20% | 1/5 |
| 25% | 1/4 |
| 33.33% | 1/3 (approx.) |
| 50% | 1/2 |
| 66.67% | 2/3 (approx.) |
| 75% | 3/4 |
| 80% | 4/5 |
| 100% | 1 |
| 125% | 1 1/4 |
| 150% | 1 1/2 |
| 200% | 2 |