Simplify: radical 18 divided by radical 15

Question

anonymous · Answer

$$\frac{ \sqrt{18} }{ \sqrt{15}}$$

anonymous · Answer

Yep that's the problem. :)

anonymous · Answer

You have to factor out the numbers! So factor 18 first...

anonymous · Answer

Well...I don't really know how

anonymous · Answer

factoring is basically listing the numbers that you multiply to get the main number..

anonymous · Answer

so what two numbers multiply to get 18?

anonymous · Answer

2 and 9

anonymous · Answer

mhm...

anonymous · Answer

So what two numbers multiply to get 9?

anonymous · Answer

3 and 3

anonymous · Answer

so 18 factored is 2*3*3

anonymous · Answer

so when simplfying radicals you find the numbers that are there twice. What number is in the list twice?

anonymous · Answer

3

anonymous · Answer

okay so you take that 3 and put it outside the radical so it becomes...$$3\sqrt{2}$$

anonymous · Answer

K well what about 15 because the numbers don't happen twice

anonymous · Answer

Right so its simplified all the way already.

anonymous · Answer

Oh...Okay so now what?

anonymous · Answer

Its simplified!

anonymous · Answer

anonymous · Answer

Oh um well my teacher gives us the answers and he put radical 30 divided by 5.

anonymous · Answer

???