In addition to what has already been suggested, there is another approach.
Just add Toggle Full Screen View button to the Quick Access Toolbar from the
command well (Commands Not in the Ribbon or All Commands) which allows you to
view the document without the Ribbon.
To add the Toggle Full Screen View button to the Quick Access Toolbar, click
the Office Button to display the Office menu, click Word Options to display
the Word Options dialog box, click Customize in the left pane, under Choose
commands from, select All Commands. Scroll down to Toggle Full Screen View,
click Add and click OK.
Click the Toggle View Screen View button on the Quick Access Toolbar to
display full screen view; press ESC to return to whatever view you were in so
that you can access the Ribbon
Only shortcut menus and the Mini Toolbar, which gives you access to a broad
range of formatting commands, are available in full screen view – just right
click.