So one of my problems is the square root of 768/square root of 384. I tried multiplying it by the square root of 384/square root of 384, but i ended up with a crazy answer. Should I simply the radicals first and then try it?....never mind, I divide radical 768/radical 384 to get radical 2, right? But another one I'm stuck on...how do you simplify 9/ square root of 448? Also,if I have radical 324/radical 147, should I simplify it, like make radical 324, 2 radical 6?