Question

how to divide
$2 \sqrt{5}$

Answer 1

root 5 is irrational. So , there is no obvius way to find the value of 2/root 5. But you can substitute the approximate value of root 5 and then calculate.
root 5 = 2.236 approx.
So, your answer would be ,
2/2.236 = 2000/2.236 = 0.894454 approx.