Fraction Calculator

Add, subtract, multiply, or divide two fractions and see the simplified result.

Formula

For addition: a/b + c/d = (ad + bc) / bd, then simplify.

1/2 + 1/3 = 5/6

Enter the requested values, then the calculator applies the formula and updates the result instantly.

Use this calculator for quick planning, estimates, comparisons, and everyday decisions where the formula applies.

Common mistakes include using inconsistent units, entering percentages as decimals, rounding too early, or forgetting extra allowances such as waste, tax, or fees.

Examples

Example

1/2 + 1/3 = 5/6

Use the calculator above for your own numbers.

Formula Check

For addition: a/b + c/d = (ad + bc) / bd, then simplify.

Formula-based result

Practical Use

Add, subtract, multiply, or divide two fractions and see the simplified result.

Fast online calculation

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

Quickly estimate a result before making a decision
Compare options using the same formula
Check manual calculations
Save time on repeated calculations

How It Works

Enter your values.
The page applies the formula.
Review the main result, details, and formula used.

Common Mistakes

Mixing different units
Using the wrong percentage format
Leaving required fields blank
Rounding before the final step

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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.