Enter each fraction as a numerator over a denominator. Leave the whole-number box blank for a simple fraction like 3/4, or fill it in for a mixed number like 1 1/2. Every answer is computed with exact integer math, so there is no rounding error, and it is automatically simplified. Nothing is uploaded - the calculation happens entirely on your device.
Free Fraction Calculator
Runs entirely in your browser - no upload, no sign-up.
Enter two fractions
5/4Mixed: 1 1/4 · Decimal: 1.251/2 + 3/4 = 5/4
Leave the whole box blank for a simple fraction, or fill it in for a mixed number like 1 1/2. Results simplify as you type and nothing is uploaded.
What is a fraction calculator?
A fraction calculator adds, subtracts, multiplies and divides two fractions or mixed numbers and shows the answer reduced to lowest terms. Type a numerator and denominator, pick an operation, and you get the simplified fraction, the mixed number, and the decimal at once. It all runs in your browser.
How to use
- 1Enter the first fraction. Type a numerator and denominator. Add a whole number for a mixed number like 2 1/3.
- 2Choose an operation. Tap plus, minus, times, or divide between the two fractions.
- 3Enter the second fraction. Fill in the second numerator and denominator the same way.
- 4Read the answer. See the simplified fraction, the mixed number, and the decimal update live, then copy it.
Who it's for
- Students and parents checking fraction homework and seeing the answer both as a fraction and as a mixed number.
- Cooks and bakers scaling recipes up or down, where 3/4 cup times 2 or 1/2 plus 1/3 has to be exact.
- Woodworkers and DIYers adding inch fractions like 5/8 + 7/16 without converting to decimals first.
- Anyone who needs a quick, exact fraction answer in lowest terms instead of a rounded decimal.
FAQ
How do you add fractions with different denominators?
Rewrite both fractions over a common denominator, add the numerators, then simplify. For 1/2 + 3/4, the common denominator is 4, giving 2/4 + 3/4 = 5/4, which is 1 1/4. This calculator does the common-denominator step and the reducing for you.
Can it handle mixed numbers?
Yes. Type the whole number in its own box and the fraction beside it, so 1 1/2 is entered as whole 1, numerator 1, denominator 2. The tool converts it to an improper fraction, does the math, and gives the answer back as both a fraction and a mixed number.
Does it simplify the answer?
Always. Every result is reduced to lowest terms by dividing the numerator and denominator by their greatest common divisor. So 6/8 is shown as 3/4, and a result like 4/2 is shown as the whole number 2.
How does it divide fractions?
It multiplies the first fraction by the reciprocal of the second - you flip the second fraction and multiply. Dividing by zero (a second fraction of 0) has no answer, so the calculator shows a clear message instead of a result.
Can I use negative fractions?
Yes. Put a minus sign on the whole number or the numerator, such as -3/4 or -1 1/2. The sign is carried through the arithmetic and the answer keeps the correct sign in lowest terms.
Is it free and private?
Yes - it is 100% free with no sign-up and no limits, and every calculation runs locally in your browser. Nothing you type is ever uploaded to a server.