Math

Fraction calculator

Add, subtract, multiply or divide two fractions, with a simplified result.

Embed this calculator on your website

Copy this code and paste it into your page (WordPress, Wix, Webflow, HTML…). It's free: please keep the link to HOD Calc.

<iframe src="https://calc.hod-group.com/embed/?hodtool=fraction&amp;hodlang=en" title="Fraction calculator" loading="lazy" style="width:100%;max-width:720px;height:560px;border:0;border-radius:12px" data-hodcalc></iframe>
<p style="font:13px sans-serif;margin:6px 0 0">Calculator by <a href="https://calc.hod-group.com/en/fraction-calculator/">HOD Calc</a></p>
<script async src="https://calc.hod-group.com/assets/embed.js"></script>

How it works

a/b + c/d = (a×d + c×b) / (b×d), then divide top and bottom by their GCD.

Results are for guidance only and do not replace professional advice.

Worked example

With the default values:

Fraction 1 (e.g. 3/4)3/4
Operation+ add
Fraction 25/6

you get:

Result19/12
As a decimal1.583333
As a mixed number1 7/12

Frequently asked questions

How does the “Fraction calculator” tool work?

a/b + c/d = (a×d + c×b) / (b×d), then divide top and bottom by their GCD.

What do I need to enter?

Just fill in: fraction 1, operation, fraction 2. The result updates as you type.

Can you give an example?

Fraction 1 (e.g. 3/4): 3/4; Operation: + add; Fraction 2: 5/6 → Result: 19/12; As a decimal: 1.583333.

Is this calculator free, and is my data private?

Yes. HOD Calc is completely free with no sign-up. The calculation runs in your browser: nothing you type is sent or stored.