Can I Download The Sims 3 Expansion Packs If I Bought The Base Game?

:newfag: Hi, I recently decided to get some expansion packs for my Sims 3 game. I then found this website and decided to read through some of the posts to see if there was any way I would be able to download the expansions but I couldn't find anything that was of use.   So I was wondering if it were possible to download the expansion packs even though I bought the base game? I bought the base game through Origin. 

I didn't quite know where to post a question like this; so sorry if I may have posted this in the wrong place. 

Hello and welcome!
Of course you can!
All you need to do is make sure you do EVERY single step of this article.
I had the base game and quite few expansions from the store and got the rest from here so they all work fine if everything goes perfect!
Good luck!