How do you simplify 2/sqrt(5) ?

2 Answers
Apr 18, 2018

sqrt(4/5)

Explanation:

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

2/sqrt5

to this:

sqrt4/sqrt5

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

sqrt(4/5)

And that is pretty much it.

Apr 18, 2018

(2sqrt5)/5=2/5sqrt5

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