Calculator Inputs
Results
3/4
Simplified fraction
0.75
Decimal
About This Calculator
Fractions show parts of a whole. This calculator adds, subtracts, multiplies, and divides two fractions, then reduces the result to its simplest form using the greatest common divisor.
Quick Rules
- Add/Sub: find a common denominator first (d₁ × d₂).
- Multiply: numerator × numerator, denominator × denominator.
- Divide: flip the second fraction and multiply.
Frequently Asked Questions
How do I simplify a fraction?
Divide both the numerator and denominator by their greatest common divisor (GCD). For 6/8, the GCD is 2, so it simplifies to 3/4.
Why is the denominator sometimes negative?
Our simplifier always moves the sign to the numerator, so the denominator stays positive — the standard convention for writing fractions.