Divide by the GCD
For example, 18/24 becomes 3/4 after dividing the numerator and denominator by 6.
Everyday math
Fraction simplifier
Reduce a fraction to lowest terms or calculate operations with two fractions and view every step.
Simplified fraction
2/3Greatest common divisor12
Decimal value0.6666666667
Mixed number2/3
StatusSimplest form
Step-by-step work
- GCD(24, 36) = 12.
- Divide numerator and denominator by 12.
- 24 ÷ 12 / 36 ÷ 12 = 2/3.
Find the simplest form automatically
The calculator obtains the greatest common divisor of the numerator and denominator, then divides both terms by that number.
How to simplify a fraction
A fraction is in simplest form when its numerator and denominator have no common divisor greater than one. For 24/36, the GCD is 12, so dividing both terms gives 2/3.
Add, subtract, multiply, and divide
Select “Calculate two fractions” to obtain a simplified result, decimal value, mixed number, and complete procedure.
Frequently asked questions
Which denominators are allowed?
Any integer except zero. A zero denominator does not represent a valid fraction.
What is a fraction in simplest form?
Its numerator and denominator have no common divisor greater than one. For example, 2/3 is in simplest form.
How do I know whether a fraction is already simplified?
If the greatest common divisor of numerator and denominator is 1, the fraction is already in simplest form.
Can I enter negative fractions?
Yes. Enter the negative sign in either term and the calculator normalizes the final sign.
How do you divide by a fraction?
Invert the second fraction and multiply. Dividing by 2/3 is the same as multiplying by 3/2.