Simplify Fraction Calculator
Reduce any fraction to lowest terms.
Enter your values
ⓘ Live results
Results
- Simplified fraction
- 2/3
- Greatest common divisor
- 42
- Mixed number
- 2/3
- Decimal
- 0.666667
Working
- 1GCD(84, 126) = 42
- 284 ÷ 42 = 2, 126 ÷ 42 = 3
Quick answer
A fraction is simplified by dividing the numerator and denominator by their greatest common divisor.
a/b ÷ gcd(a,b)
How to use the Simplify Fraction Calculator
- 1Enter the numerator.
- 2Enter the denominator.
- 3Read the fraction in lowest terms.
Worked example
Using the values the calculator loads with:
Inputs
- Numerator84
- Denominator126
Results
- Simplified fraction2/3
- Greatest common divisor42
- Mixed number2/3
- Decimal0.666667
- GCD(84, 126) = 42
- 84 ÷ 42 = 2, 126 ÷ 42 = 3
Frequently asked questions
How do I find the GCD?
Use the Euclidean algorithm: repeatedly replace the larger number with the remainder of dividing it by the smaller until one is zero.
Is 6/8 the same as 3/4?
Yes, they are equivalent fractions. 3/4 is the simplified form because 3 and 4 share no common factor above 1.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.