Hi, I'm sorry, thought equation-fields were commonly used
I updated to macOS 10.13 High Sierra, Alfred 3.5 and Word 2016 v. 15.38.
Made a word document for you to see: https://cl.ly/n1Sp
Funny enough, I just updated Word to v. 15.39 and copy pasting things from word equations works again. Maybe it was Word messing with me, but thanks anyway
PS. To insert an equation field, just Choose Insert and then Equation over at the top-right side of the window.