I did my LVN at a private vocational school, but I did all my pre-reqs at Community Colleges. I did them before I started LVN school. They were accepted at the vocational school and if I had done them there they would have cost me $1K - not only that, but then they transferred to my current RN bridge progam at the CC that I'm in. I would advise, as the previousl poster did, that for anyone interested in going all the way from LVN to RN to do their pre-reqs at a CC. Often at trade or vocational schools the pre-reqs for LVN differ from the pre-reqs for RN programs. For example: my LVN program accepted a combined 4 unit Anatomy and Physiology. My RN program accepts only Anatomy 4 or 5 units with a lab, and the same for Physio. Why do them more than once? That's just my opinion.
Good luck! It takes perserverance, but you'll get there.