simplify 7sqrt(15)÷14sqrt(5)?

7√15 ÷ 14√5
= (7 ÷ 14)*[√(15/5)]
= (1/2)*(√3)
= (√3)/2

7√15
---------
14 √5

7√5 √3
----------------
14 √5

√3
------
2

Okay, I definitely deserved the 2 thumbs-down...My original answer was incorrect because I was in a hurry and misread the problem as 7sqrt(15)÷14sqrt(15).

Here is the correct answer...
7sqrt(15)÷14sqrt(5)
= sqrt(15)/2*sqrt(5)
= (1/2)sqrt (15/5)
= (1/2)sqrt (3)

Enjoy!

Enjoy!