Does it simplify the answer automatically?

Yes. Every result is reduced to lowest terms and also shown as a mixed number and a decimal.

Can I use decimals in the numerator or denominator?

Yes — values like 2.5/4 are handled by scaling to whole numbers internally before calculating.

Is it free and private?

Completely free, no login, and all math runs in your browser — nothing is uploaded.

How do I enter a mixed number like 2 3/4?

Use the three separate boxes: 2 in the whole-number field, 3 as the numerator and 4 as the denominator. Leave the whole-number box empty for a plain fraction such as 3/4. The answer comes back in the same style, so a result larger than one is shown as a mixed number rather than a top-heavy fraction.

Why is dividing by a fraction the same as multiplying by its flip?

Dividing asks how many of the second fraction fit inside the first. Halving something is the same as doubling how many pieces you count, so dividing by 1/2 doubles the result. Flipping the second fraction and multiplying is that idea written down, which is why the answer to a division can be larger than what you started with.

➗ Fraction Calculator

Enter two fractions, choose an operation, and get the simplified result, its mixed-number form, and the decimal value instantly. Toolio's Fraction Calculator supports whole numbers and even decimal numerators or denominators, and runs entirely in your browser — free, private, and offline-capable.

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Decimal

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Percent

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Tips

Leave the whole-number box empty for a plain fraction like 3/4.
Numerators and denominators may be decimals — 2.5/4 works too.
Everything runs in your browser. Nothing is uploaded.

Private by design. This tool runs entirely in your browser — nothing you enter is uploaded or stored, and it works offline.

About

This calculator handles the four core fraction operations — addition, subtraction, multiplication and division — and always reduces the answer to lowest terms using the greatest common divisor. It shows three representations at once: the simplified fraction, the mixed number (whole part plus remainder), and the decimal/percent equivalent, plus a one-line breakdown of the calculation so you can check the working. Because it runs client-side, nothing you type is uploaded or stored on a server.

How to use

Type the numerator and denominator of the first fraction (add a whole number if you have a mixed number).
Pick the operation: + , − , × or ÷.
Enter the second fraction. The result updates instantly as you type.
Read the simplified fraction, mixed number, and decimal — or click 'Copy result'.

FAQ

Does it simplify the answer automatically?: Yes. Every result is reduced to lowest terms and also shown as a mixed number and a decimal.
Can I use decimals in the numerator or denominator?: Yes — values like 2.5/4 are handled by scaling to whole numbers internally before calculating.
Is it free and private?: Completely free, no login, and all math runs in your browser — nothing is uploaded.
How do I enter a mixed number like 2 3/4?: Use the three separate boxes: 2 in the whole-number field, 3 as the numerator and 4 as the denominator. Leave the whole-number box empty for a plain fraction such as 3/4. The answer comes back in the same style, so a result larger than one is shown as a mixed number rather than a top-heavy fraction.
Why is dividing by a fraction the same as multiplying by its flip?: Dividing asks how many of the second fraction fit inside the first. Halving something is the same as doubling how many pieces you count, so dividing by 1/2 doubles the result. Flipping the second fraction and multiplying is that idea written down, which is why the answer to a division can be larger than what you started with.