To write the expression 23/5 as a radical, we can simplify it by rationalizing the denominator.
We start by multiplying both the numerator and denominator by the conjugate of the denominator, which is √5:
(23/5) * (√5/√5) = (23√5) / (√5 * √5) = (23√5) / 5
Therefore, the expression 23/5 can be written as (23√5) / 5.