# How do you simplify #2/sqrt(5)# ?

##### 2 Answers

Apr 18, 2018

#### Explanation:

Just turn two into the square root of four so you go from this:

to this:

Now you can put the square root infornt of them to get:

And that is pretty much it.

Apr 18, 2018

#### Explanation:

#color(blue)"rationalise the denominator"#

#"that is remove the radical from the denominator"#

#"This is done by multiplying numerator/denominator"#

#"by the radical on the denominator"#

#"note that "sqrtaxxsqrta=a#

#rArr2/sqrt5xxsqrt5/sqrt5=(2sqrt5)/5=2/5sqrt5#