Question

How do you simplify `sqrt(3/7)`?

Answer 1

I guess you mean "rationalize". The answer is `sqrt21/7` .

Explanation:

`sqrt(3/7)`
`sqrt3/sqrt7`
multiply both numerator and denominator by `sqrt7`
`sqrt3/sqrt7*sqrt7/sqrt7`
`sqrt21/7`

That's it.
Hope it helps :)