You can download the game through the Google Play app, which should be on most all android tablets (of which I assume the HP tablet is). You can also download the game from the Amazon App Store, if you have that. You can do a search for "The Sims Freeplay" or by developer "EA"
You can also try to do it through the Google Play website, which you can access here:
https://play.google.com/store/apps/details?id=com.ea.games.simsfreeplay_na
