For any poor soul that has to write LaTeX for whatever reason but doesn't want to bother installing anything, I cannot recommend https://www.sharelatex.com/ enough.
This is the only reason I got to make my team mates use to Latex for lab reports instead of Word. Latex isn't hard, and the fact that I could help them in real time and that they could see my code in our report's context got them pretty good at latex within an hour of using it !