Sims 3 on a MacBook Air?

I am posting this in the mac group and in the gaming group but I have had a MacBook Air for a month now and i have tried various patches and terminal commands and stuff but none have worked! I really just wanna play Sims and I don't wanna have to do all that dirty work, should I reinstall a download of the base game? I am on 12.0.273, what can I do? Thanks so much! Please help!