| Fraction | Reduced fraction | Common factors | Factors canceled | Note |
| {y} |
Reduce a Fraction to Its Lowest Terms
This online calculator transforms a fraction to reduce it to its lowest terms.
What is a fraction in lowest terms?
A fraction in lowest terms is a fraction that has been simplified as much as possible.
How the calculation works
To simplify a fraction, the numerator and the denominator are broken down into prime factors. Then, the matching factors between the numerator and the denominator are canceled.
Definition of numerator and denominator
The numerator is the number above the fraction bar and the denominator is the one below.
Using the calculator
Simplifying a fraction online to reduce it to its lowest terms is very easy with this tool. Just enter the numerator and the denominator of your fraction and the result appears automatically.
Understanding the simplification process
The Details button shows the details behind the reduction of the fraction. In order of appearance, the first part shows the factors of the numerator and the second part those of the denominator.
Example of a fraction to simplify
Suppose we want to simplify the fraction 90⁄15.
Result
Factor details
Save the results
You can save the fraction and its reduced form by pressing Save. You can then export the table data to a CSV or PDF file.
Keyboard shortcuts
m ⇝ Clear
f ⇝ Save
d ⇝ Details