Question

Simplify: radical 18 divided by radical 15

Answer 1

\[\frac{ \sqrt{18} }{ \sqrt{15}}\]

Answer 2

Yep that's the problem. :)

Answer 3

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

Answer 4

Well...I don't really know how

Answer 5

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

Answer 6

so what two numbers multiply to get 18?

Answer 7

2 and 9

Answer 8

mhm...

Answer 9

So what two numbers multiply to get 9?

Answer 10

3 and 3

Answer 11

so 18 factored is 2*3*3

Answer 12

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

Answer 13

3

Answer 14

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

Answer 15

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

Answer 16

Right so its simplified all the way already.

Answer 17

Oh...Okay so now what?

Answer 18

Its simplified!

Answer 19

https://www.khanacademy.org/math/arithmetic/exponents-radicals/radical-radicals/v/simplifying-radicals check this out for a detailed verson

Answer 20

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

Answer 21

???