How does Random Fraction Generator make its random choices?

Web Crypto selects a bounded denominator and then a numerator from that denominator's valid range for the requested fraction class.

Does Random Fraction Generator upload my inputs or results?

No. Values stay in the current browser tab and are not placed in the URL, analytics, storage, or network requests.

When should I use Random Fraction Generator?

Use it to create fraction exercises, test rational-number formatting, or produce examples with explicit denominator bounds.

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PRIVATE BROWSER TOOL · PHASE 1

Random Fraction Generator

Generate proper, improper, or mixed fractions with controllable numerator, denominator, and simplification rules. The complete workflow runs locally in this browser, with visible controls and a result you can inspect before copying or downloading.

LOCAL WORKBENCH

Generate a result

No upload · no account · no URL storage

Choose your settings, then select Generate.

How it works

Draw a nonzero denominator and a numerator that satisfies the selected fraction type.
Reduce by the greatest common divisor when simplification is enabled.
Convert improper results to whole-plus-remainder form only when mixed-number output is requested.

Worked example

A proper draw of 12/18 simplifies to 2/3; mixed mode could display 11/4 as 2 3/4.

Limits and interpretation

Numerator and denominator bounds are capped at 10,000.
Simplification can make different raw draws display as the same reduced fraction.
The tool generates rational examples and does not evaluate fraction expressions.

Privacy

Your inputs and generated results stay in this browser. This tool does not put them in a URL, analytics event, server log, or external request.

Frequently asked questions

How does Random Fraction Generator make its random choices?: Web Crypto selects a bounded denominator and then a numerator from that denominator's valid range for the requested fraction class.
Does Random Fraction Generator upload my inputs or results?: No. Values stay in the current browser tab and are not placed in the URL, analytics, storage, or network requests.
When should I use Random Fraction Generator?: Use it to create fraction exercises, test rational-number formatting, or produce examples with explicit denominator bounds.