How to Prevent Google Docs from Automatically Replacing Fractions

Google Docs is designed to automatically format your text to look as clean and professional as possible. One of the ways it does this is by converting standard typed fractions, such as 1/2 or 3/4, into single-character typographic symbols (½ or ¾).

For most general writing, this automatic substitution is helpful. However, if you are typing mathematical equations, baking recipes with specific formatting requirements, or technical documentation where clarity is paramount, these tiny, compressed typographic fractions can be incredibly difficult to read. Furthermore, Google Docs only auto-formats a very small set of common fractions. If you type 1/2, it converts to ½, but if you type 5/16, it remains 5/16, resulting in mismatched, messy formatting throughout your document.

If you prefer your fractions to remain exactly as you typed them (with a standard slash), you can easily disable this specific AutoCorrect feature. This guide explains how to prevent Google Docs from automatically replacing your fractions.

How to Disable Automatic Fractions

This setting is handled within the global Preferences menu of Google Docs. Unlike some settings that only apply to the current document, changing this preference will affect all future documents you create while logged into your Google Account.

1. Open Google Docs in your web browser and open any existing document (or create a new blank one).
2. Click on the Tools menu in the top navigation bar.
3. From the drop-down menu, select Preferences.
4. A Preferences dialogue box will appear. By default, it opens on the “General” tab.
5. Look down the list of checkboxes in the General tab until you find the option labeled Automatically use fractions.
6. Click the checkbox to uncheck it.
7. Click the blue OK button at the bottom right of the window to save your changes.

How to Revert Existing Typographic Fractions

Disabling the preference using the steps above prevents Google Docs from converting new fractions you type in the future. However, it will not retroactively change the typographic fractions (like ½) already present in your document back to standard text (like 1/2).

If you have a long document filled with these auto-formatted fractions, you do not need to manually retype them. You can use the Find and Replace tool.

1. Press Ctrl + H (or Cmd + H on a Mac) to open the Find and Replace tool.
2. In the Find field, copy and paste the typographic fraction you want to remove (e.g., ½).
3. In the Replace with field, type the standard text fraction you want (e.g., 1/2).
4. Click Replace all.

Repeat this process for other common fractions like ¼ and ¾. By disabling the automatic feature and running a quick Find and Replace, you guarantee your document maintains consistent, readable formatting.