When I had to take the GRE to get into grad school and then the PRAXIS to prove I could teach (we won't go there...), I used a book called Math Smart to help me with everything from fractions to algebra.
I've included a link:
http://www.amazon.com/Smart-Princeto...8147741&sr=1-5
I would offer to send you my copy, but I loaned it out to someone and it didn't get returned (and I can't remember who I loaned it to).
I'm sure the public library either has a copy or can get it from another library if you don't want to buy it.
Rose Hall