What is the Random Fraction Generator?
The Random Fraction Generator is built for math practice and classroom activities. Each result is a fraction such as 3/4 or 6/7, shown together with its decimal equivalent rounded to three places, so learners can check their own conversions.
You control the difficulty with the Largest denominator setting, from 2 up to 100. A limit of 10 or 12 keeps things friendly for younger students, while larger denominators make comparing and simplifying more challenging. The Type option switches between proper fractions, which are always less than 1, and improper fractions, whose numerator can be larger than the denominator. With Simplest form only turned on, every fraction is already fully reduced; turn it off to get fractions like 4/8 that students can simplify themselves.
Generate up to 100 fractions per click and export them as CSV, JSON or TXT to drop straight into worksheets or slides. Randomness comes from your browser’s Web Crypto API, and nothing you generate is stored.
How to use the Random Fraction Generator
- Set the Largest denominator between 2 and 100.
- Choose the Type: proper (less than 1) or improper (can exceed 1).
- Turn Simplest form only on or off, and set How many? up to 100.
- Press Generate, then copy or export your fractions.
Popular uses
- Teachers — build fraction worksheets, warm-ups and exit tickets.
- Parents & tutors — create endless practice for homework help.
- Students — practice converting fractions to decimals and checking answers.
- Game makers — draw random fractions for math board and card games.
Why use RandNow?
- Instant & unlimited — no sign-up, no daily caps.
- Private by design — results are generated in your browser, not on our servers.
- Export-ready — copy, CSV, JSON and TXT downloads built in.
- Cryptographically random — powered by the Web Crypto API.
Activity ideas with random fractions
Ask students to order a set of ten fractions from smallest to largest, then check with the decimal values. Turn off simplest form and challenge them to reduce each fraction by finding the greatest common factor. Use improper fractions to practice converting to mixed numbers — 7/4 becomes 1 ¾ — or pair two fractions and have learners add, subtract or compare them using common denominators. Improper fractions also work well on number lines, where students mark where each value falls beyond 1.
Press Generate again for a fresh set of fractions — it’s free and unlimited.
Frequently asked questions
What is the difference between proper and improper fractions?
A proper fraction is less than 1, like 3/4. An improper fraction has a numerator equal to or larger than its denominator, like 7/4, so it can be 1 or more.
Can I get fractions that are not simplified?
Yes. Turn off “Simplest form only” to allow fractions like 4/8 or 6/9.
What is the largest denominator I can use?
You can set the largest denominator anywhere from 2 to 100.
Does it show the decimal value?
Yes, each fraction is shown with its decimal equivalent, rounded to three decimal places.