Answer :

To rationalize the denominator, multiply by√5/√5 (which is 1). 
15√6  (√5)
3√5    (√5)

This makes the √5 in the denominator 5.

15√6√5
3(5)

Multiply the √6 and √5 to get√30, which cannot be simplified, so you get

15√30
15

15/15 simplifies to 1, so the final answer is √30

Answer:

final answer is √30

Explanation: