LaTeX is the best way to write mathematics. It completely pisses all over Word. However, it does take some time to get used to so might not be worth your while if you won't write too much. The way I use it is to first download and install a latex editor and then get writing, but I would recommend that you use this website instead since you can get going a lot quicker. The upshot of the whole business is that you type in here and then a pdf is generated with all the equations looking ace. I'll give you some examples.
Probability Homework 8 Solution
This LaTex file is composed using LaTex.It's my probability homework published here only with the purpose of making more people get to know and use LaTex well!
Academic Writing Template
A Template useful for students of the Academic Writing (2017) course given at the VU Amsterdam.
Workshop and examples for getting started with LaTeX, Tufts 2016 CSLOL
Minimal (blank) example LaTeX template
A relatively minimal example template, with enough commands to ensure it compiles when you first open it, but otherwise providing a blank slate for you to get started on.
Introduction to LaTeX
An attempt to create a compact introduction to Overleaf and LaTeX in general. Topics and examples are tailored to meet the needs of The Hudson School. This is a work in progress. The document works well as a PDF and most examples are included verbatim.