Fraction Calculator Online
Add, subtract, multiply, and divide fractions with automatic simplification and step-by-step explanations.
(Optimized for PDF export via your browser's print menu)
Add, subtract, multiply, and divide fractions instantly with automatic simplification and clear step-by-step explanations.
What Is a Fraction Calculator?
A Fraction Calculator is a tool that performs arithmetic operations on fractions — addition, subtraction, multiplication, and division — and automatically simplifies the result to its lowest form. Whether you’re working through a homework problem or handling a quick calculation, this tool delivers accurate answers with full working shown.
Formulas Used
Addition & Subtraction To add or subtract fractions, the calculator first finds the Least Common Denominator (LCD) using the LCM of both denominators, rewrites each fraction with that common denominator, then adds or subtracts the numerators.
Multiplication The numerators are multiplied together and the denominators are multiplied together to produce the result.
Division The first fraction is multiplied by the reciprocal of the second fraction, turning a division problem into a multiplication one.
Simplification The result is reduced to its simplest form by dividing both the numerator and denominator by their Greatest Common Divisor (GCD).
Mixed Number Conversion If the result is an improper fraction, it is also expressed as a mixed number for easier reading.
How to Use This Calculator
- Enter your fractions — type the numerator and denominator for each fraction in the input fields.
- Select an operation — choose addition, subtraction, multiplication, or division from the dropdown menu.
- Click “Calculate” or press Enter to get your result.
- Review the answer — the simplified result is shown along with a full step-by-step breakdown.
- Export to PDF — use your browser’s print menu to save the result as a clean single-page PDF.
Why Use This Fraction Calculator?
All Four Operations in One Place No need to switch between tools. Addition, subtraction, multiplication, and division are all handled in a single calculator.
Automatic Simplification Results are always reduced to their simplest form using GCD, so you never have to simplify manually.
Step-by-Step Solutions Every calculation includes a detailed explanation of each step — ideal for students who want to understand the process, not just the answer.
Mixed Number Support Improper fractions are automatically converted to mixed numbers, giving you results in the most readable format.
PDF Export Ready Results are formatted for clean, single-page PDF output via your browser’s print menu — great for saving or sharing your work.
Free to Use No account needed, no hidden fees. Just enter your fractions and calculate.
Common Use Cases
Adding fractions with different denominators, simplifying complex fraction expressions, checking homework answers, working with recipes or measurements that involve fractions, and solving algebra problems that require fraction arithmetic.
