โ Math
Fractions Calculator
Fractions are added by finding a common denominator, then simplified by dividing both parts by their greatest common divisor. Working through the numerator and denominator separately is what keeps the arithmetic exact rather than approximate.
How it works
First numerator
First denominator
Operation
Second numerator
Second denominator
Simplified numerator
Simplified denominator
Result
Decimal value
As a mixed number
Common denominator
Reciprocal
Frequently asked questions
How do I use the Fractions Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.