When showing your work you should use the equation editor in Word. I have seen others compliment the capability of the equation editor in Word for Mac 2011. In Office for Mac the Equation Editor is typically installed by default.
Word 2011 is more Mac-like than ever despite its commonality.
The video below walks through a few examples using Microsoft Word 2016 and Microsoft Word for Mac 2011. Word 2011 is more Mac-like than ever despite its commonality. To add an equation image in Word Mac Click on Home on the menu bar. When showing your work you should use the equation editor in Word.