Fraction Simplifier
Reduce a fraction and convert it to decimal or mixed form.
How to use
- 1 Enter the numerator (top number) of your fraction.
- 2 Enter the denominator (bottom number).
- 3 Read the simplified fraction, decimal and mixed number.
- 4 Copy whichever form you need.
About Fraction Simplifier
The Fraction Simplifier reduces a fraction to its lowest terms and shows you the same value three ways: as a simplified fraction, as a decimal, and as a mixed number.
Enter a numerator and a denominator and it does the rest, dividing both by their greatest common divisor so the result is as small as it can be while staying equal.
Simplifying fractions by hand means spotting a common factor, dividing, then checking whether you can divide again — fine for small numbers, tedious and error-prone for larger ones.
This tool finds the greatest common divisor in one step, so 8/12 becomes 2/3 and 462/1071 becomes 22/51 with no guesswork.
It also normalises the sign onto the numerator, so the denominator is always positive and the result reads cleanly.
Alongside the reduced fraction you get the decimal value, handy for plugging into a calculation, and the mixed-number form, which is how you would usually write an improper fraction like 7/3 as 2 1/3.
A zero denominator is rejected with a clear message rather than producing nonsense.
Everything is computed in your browser, instantly and privately, with copy buttons on each form so you can take whichever one you need.
FAQ
How does it simplify the fraction?
It divides both the numerator and denominator by their greatest common divisor, which is the largest whole number that divides them both exactly.
What happens with an improper fraction?
It is still reduced to lowest terms, and the mixed-number view shows it as a whole part plus a proper fraction, for example 7/3 as 2 1/3.
Can the denominator be zero?
No. Division by zero is undefined, so a zero denominator is rejected with a clear message.