Add Fractions
Quickly sum up all the fractions in the given list and find their total. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Add Fractions
- 1. Paste your fractions. Type the fractions you want to add, such as 1/2, 1/3, separated by commas or line breaks. Mixed numbers and negative fractions are read the same way as simple ones.
- 2. Read the summed result. The tool finds a common denominator, adds the numerators and reduces the answer to lowest terms automatically, so you never have to simplify a result like 4/8 by hand.
- 3. Copy the total. Copy the reduced fraction from the output and drop it into your worksheet, recipe conversion or spreadsheet formula wherever the sum is needed next.
When to use Add Fractions
Add Fractions sums any list of fractions and returns the reduced total, handling the common-denominator arithmetic that gets tedious past two or three terms. It is built for anyone who needs an exact fractional answer instead of a rounded decimal.
- Checking a student's homework. A parent or tutor wants to verify the answer to a fraction addition problem from a math worksheet without redoing the common-denominator steps by hand.
- Scaling a recipe. You are doubling a recipe that calls for 1/4 cup of one ingredient and 1/3 cup of another added at the same stage, and want the combined measurement in one clean fraction.
- Totaling fractional measurements. A woodworking or sewing project lists several fractional inch measurements that need to be summed to check they fit within a fixed board length or fabric width.
- Verifying a probability calculation. You are adding several event probabilities expressed as fractions for a statistics assignment and want the exact reduced sum rather than a rounded decimal approximation.
Examples
Add two fractions
Input
1/2, 1/3
Output
5/6
Fractions and whole numbers
Input
1/4 3/4 2
Output
3
About the Add Fractions tool
Add Fractions runs as plain JavaScript in your browser tab, with no server behind it. Quickly sum up all the fractions in the given list and find their total. Whatever you put in stays on your device from start to finish.
The tool is part of EditSafely's Number Tools section, 194 single-purpose utilities built around the same idea: open the page, get the result, keep your data to yourself.
There is nothing to configure. Provide the input and the result appears on its own. 2 worked examples further down the page show exactly what the tool produces for real inputs.
That local-first design has practical benefits beyond privacy. The tool keeps working on a flaky connection once the page has loaded, results are instant because nothing round-trips to a server, and it is safe to use with confidential material.
Frequently asked questions
Does Add Fractions cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.
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