Reduce a fraction to its lowest terms

With Fraction simplifier, students, teachers and analysts can verify a calculation during study or analysis. Reduce a fraction to its lowest terms.

Reduce a fraction to its lowest terms. Use it free in your browser without creating an account, then review the result before moving to the next step.

How to use

1. Type the fraction into the input field, placing the numerator first, then a slash, then the denominator.
2. Check that both values are integers and that the denominator is not zero before you start.
3. Run the simplification to get the fraction reduced to its lowest terms.
4. Compare the result with your own calculation or the exercise statement to catch a typing mistake.
5. Clear the fields when you are ready to simplify another fraction or test a new example.

Example

For a fraction such as 84/126, the tool looks for a common divisor and returns a simpler form. Check the new numerator and denominator, then confirm that both were divided by the same number.

Input

84/126

Output

2/3

Limits and formats

• This tool reduces a single fraction; it does not add, subtract, multiply, or divide fractions.
• It expects a numeric fraction, not decimals, units, or algebraic expressions.
• A zero denominator is undefined, so correct the input before relying on any result.
• In graded work, recheck the original digits because a mistyped fraction can still simplify correctly.

Where processing happens

The whole calculation runs in your browser. The fraction you type is not sent anywhere and stays on your device while the result is produced. You can use it for homework, teaching, or a quick check without an account.

Frequently asked questions

What does lowest terms mean?

A fraction is in lowest terms when the numerator and denominator share no common divisor other than 1. The tool divides both by their greatest common divisor, making the fraction easier to read and compare.

Can I simplify a negative fraction?

Yes, as long as you keep the numerator slash denominator format and the denominator is not zero. Pay attention to the minus sign, because the simplified result must keep the same overall sign as the original fraction.

Does it show the steps?

No, it returns the reduced fraction rather than a full calculation. If you need to explain the method, find the greatest common divisor separately and use the output as a quick verification.

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