Fraction Simplifier
Simplify a fraction to its lowest terms.
Fractions in simplest form
A fraction is in its simplest form when the top and bottom share no common factor other than one. This reduces a fraction to lowest terms, so a value like eight-twelfths becomes the cleaner two-thirds, which is easier to read and to work with.
Enter a fraction to simplify it.
How simplifying works
Simplifying a fraction means dividing both the numerator and denominator by their greatest common divisor — the largest number that goes into both — which strips out the shared factor in one step. Doing it by repeatedly dividing by small common factors works too but takes longer. The value of the fraction is unchanged; only its representation gets cleaner. This matters because simplified fractions are far easier to compare, add and understand, and a final answer left un-simplified looks unfinished. It is one of the first genuinely useful skills in working with fractions, and seeing the simplified form instantly is handy when the common factor is not obvious.
Common questions
What does simplifying a fraction do?
It divides the top and bottom by their greatest common divisor, giving the same value in cleaner form — eight-twelfths becomes two-thirds.
Does simplifying change the fraction's value?
No — only its representation. The simplified fraction equals the original but is easier to read and work with.
Is anything uploaded?
No. The calculation happens in your browser.