Math & Science
Fraction Calculator
Add, subtract, multiply and divide fractions
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Frequently asked questions
What does the Fraction Calculator do?
It helps you add, subtract, multiply and divide fractions.
What inputs do I need?
Enter Numerator 1, Denominator 1, Numerator 2, Denominator 2, and Operation.
Are decimals supported?
Yes, you can use decimal values where appropriate.
Related tools
About this tool
Inputs
- Numerator 1
- Denominator 1
- Numerator 2
- Denominator 2
- Operation
Results
- Result
- Decimal
Numbers tell a story, and the Fraction Calculator helps you read it. Plug in your data to see what the math reveals. All you need to supply is numerator 1, denominator 1, numerator 2, denominator 2 and operation. From there, the tool determines result and decimal. Visualizing a mathematical relationship often makes the result more intuitive than the raw number alone.
Mathematical precision depends on the number of significant figures — more digits mean less rounding error. Having a dedicated tool to add, subtract, multiply and divide fractions saves time you would otherwise spend searching for formulas or setting up a spreadsheet. Rounding to the appropriate number of significant figures avoids false precision. Understanding the underlying principle helps you judge whether a result is reasonable. Experiment with different inputs to compare scenarios. Seeing how the result shifts tells you which factors matter most.