To express the fraction [tex]\(\frac{5}{21}\)[/tex] as a decimal, you need to perform the division of the numerator by the denominator.
So, let's determine the decimal value:
[tex]\[
5 \div 21 \approx 0.23809523809523808
\][/tex]
Given this result, the correct choice is the decimal value that matches [tex]\(0.23809523809523808\)[/tex].
The correct answer from the provided options is:
0.238095