Fraction Calculator
Add, subtract, multiply or divide two fractions.
How to use Fraction Calculator
Do arithmetic on two fractions and get the simplified result. It is built for speed and privacy: open the page and start, with no account required.
Fraction Calculator is straightforward to use. The output is produced by standard arithmetic applied only to the numbers you type, so it updates the instant you change an input and never depends on a server. Because the work happens locally, there is nothing to install and no waiting on a network.
Open Fraction Calculator on toolpermarket. The tool loads instantly and runs entirely in your browser, so you can begin right away without creating an account.
In the Fraction A field, enter the first fraction, like 1/2. Use a slash; whole-and-fraction needs care.
In the Operation field, choose add, subtract, multiply or divide. Multiply and divide do not need a common denominator.
Press Calculate to compute the result. The output appears immediately below the form, and you can change any input and run it again as many times as you like.
Read the result and use it as needed. If anything looks off, double-check your inputs and run it again — the calculation is local and instant, so experimenting costs nothing.
Worked example. One half plus one quarter is three quarters; one half times one third is one sixth.
Tips for accurate results.
Add and subtract need a common denominator first.
The result is reduced to its simplest form.
Mixed numbers: convert to improper first for clean math.
When to use Fraction Calculator. Checking homework or recipe scaling. Combining measurements in different fractions. Verifying a hand calculation before trusting it.
Why use an online calculator tool. A dedicated tool like Fraction Calculator saves the time you would spend opening a spreadsheet, writing a formula, or installing software. It is free, works in any browser, and keeps your input private — handy for a one-off calculation or a quick check while you work.
Everything stays on your device. Fraction Calculator performs no network calls, uploads, or tracking — your input is processed locally and forgotten the moment you close the tab.
Frequently asked questions
Why is my answer reduced automatically?
Fractions are normally presented in lowest terms, so the tool divides the numerator and denominator by their greatest common factor. Three-sixths becomes one-half because both share a factor of three, which is the same value written plainly.
How do I add fractions with different bottoms?
Find a common denominator — usually the product or least common multiple of the two — rewrite each fraction over it, then add the tops. The calculator does this internally; you just enter 1/2 and 1/4 and it returns 3/4.
Can it handle mixed numbers like 1 1/2?
Enter them as improper fractions — 1 1/2 is 3/2 — for the cleanest result. The arithmetic is identical; converting first avoids ambiguity about where the whole number ends and the fraction begins.
How accurate is Fraction Calculator?
Fraction Calculator uses the same arithmetic your operating system and spreadsheet use, so the result is as precise as the numbers you enter. It does not round or estimate unless a field is explicitly a rounded display value, and you can recompute any time to double-check.
Is my data sent to a server when I use Fraction Calculator?
No. Fraction Calculator runs completely inside your browser. Anything you type, paste, or upload stays on your device and is never transmitted to a server, stored in a database, or shared with a third party. You can even use it offline once the page has loaded, and closing the tab erases the session.
Does Fraction Calculator work on phones and tablets?
Yes. The layout is fully responsive, so Fraction Calculator behaves the same on a phone, tablet, or desktop — the form reflows to fit the screen and the buttons stay easy to tap. There is no app to install; just open the page in any modern browser and it works.
Is Fraction Calculator free, and do I need an account?
Fraction Calculator is free to use with no account, no sign-up, and no usage limits. It is part of toolpermarket, a matrix of private, browser-based utilities built for everyday tasks, so you can return as often as you like without registering.