Fraction Calculator
Add, subtract, multiply, or divide two fractions and see the simplified result.
Calculator updated
Use this page to get a quick answer, then check the formula and example before making an important decision.
- The main result from your inputs
- Formula used for the calculation
- Worked example and common mistakes
- Related calculators for the next step
Formula
For addition: a/b + c/d = (ad + bc) / bd, then simplify.
1/2 + 1/3 = 5/6
Enter the known values and apply For addition: a/b + c/d = (ad + bc) / bd, then simplify.. Keep signs, decimal places, and the order of operations consistent with the problem you are checking.
Use the Fraction Calculator to solve or verify a math problem, compare inputs, and check a manual calculation.
Common math errors include using the wrong operation, dropping a negative sign, rounding intermediate steps too early, and confusing percentages with decimal values.
Examples
Inputs
First numerator, First denominator, Operation, Second numerator, Second denominator
Keep units and time periods consistent.Formula
For addition: a/b + c/d = (ad + bc) / bd, then simplify.
Use the formula to verify the result.What the result means
Add, subtract, multiply, or divide two fractions and see the simplified result.
Change one input at a time to compare scenarios.How to Calculate Fraction Manually
Start with the values requested in the form, keep the units consistent, and apply this formula: For addition: a/b + c/d = (ad + bc) / bd, then simplify.
The calculator above follows the same logic, then formats the answer so you can quickly compare inputs, copy the result, and check the related tools if your task has another step.
When to Use This Calculator
- Solve a homework or everyday math problem
- Check a manual calculation
- Compare different inputs
- Verify a formula step
How It Works
- Enter First numerator, First denominator, Operation, Second numerator.
- Confirm signs, units, and decimal values.
- Compare the result with the formula shown on the page.
Common Mistakes
- Using the wrong operation
- Dropping a negative sign
- Rounding intermediate steps
- Confusing percentages and decimals
Related Calculators
More Fractions & number tools tools
Continue the same workflow with closely related calculators.
Frequently Asked Questions
What does the Fraction Calculator do?
Add, subtract, multiply, or divide two fractions and see the simplified result.
Is this result an estimate?
Yes. The calculator follows the formula shown on the page. Verify important decisions with a qualified professional where needed.
Can I use this on mobile?
Yes. The calculator is designed to work on phones, tablets, and desktop screens.