You ask ChatGPT a math question, and it answers with an equation that looks great on screen. But hit Copy and paste it into Word, and you get something like this:
\frac{a}{b} + \sqrt{x^2 + 1}
Word isn't broken. It's because ChatGPT didn't send you an actual “equation,” it sent LaTeX code (a text language for describing math notation). Your browser has rendering software (MathJax/KaTeX) that turns that code into a nicely typeset equation, but when you copy it, what's actually on your clipboard is still the raw LaTeX code, and Word doesn't understand LaTeX by default.
Method 1: Use Word's built-in LaTeX input mode
From Word 2019/365 onward, Word actually supports typing LaTeX syntax right inside Equation Editor. Here's how:
- Press
Alt+=to insert a new Equation block at your cursor. - An Equation tab appears on the ribbon, open Conversions and select LaTeX mode instead of UnicodeMath.
- Paste the LaTeX code (just the equation part, e.g.
\frac{a}{b}) into the Equation block you just created, and Word rebuilds it as a proper equation.
Method 2: Paste the whole reply at once with MathCopy
If ChatGPT's answer has text and several equations woven together, a faster approach is MathCopy, copy the entire block from ChatGPT (no need to separate anything out), then paste it into Word with Ctrl + Alt + V. The text stays as is, and every LaTeX equation mixed into it is automatically rebuilt as a proper Word equation (editable just like one you typed by hand). No need to turn on LaTeX mode, no splitting anything up.
See the full steps on the user guide page, or download MathCopy for Windows to try it.
Faster: paste straight from ChatGPT
MathCopy turns equations from AI into MathType in Word with Ctrl + Alt + V.