Please help..... give me step by step answer so I understand better

Simplify by rationalizing the denominator ....15 sqrt 2/ sqrt 270

2 answers

15√2/√270 * √270/√270 15√540/270 = 15*6√15/270 = √15/3
or
15√2/√270 = 15/√135 = 15/3√15 = 5/√15 * √15/√15 = 5√15/15 = √15/3
werrgssgfsssssssdfgssssssssxsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssxssssssssssssssssssssssssssssssssssssssssssssssssssssssseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee