The simplest form of \( 25 \frac{1}{2} \) is \( 25.5 \) or \( 25.5 = 25 + 0.5 \). However, it can also be expressed as an improper fraction:
\[ 25 \frac{1}{2} = \frac{51}{2} \]
Among the options you provided (5, 12.5, square root 25, square root 25 1/2), none directly represent \( 25 \frac{1}{2} \) in simplest form. However, \( 12.5 \) appears to be the only numeric option related to fraction or form conversions, but it is not equivalent to \( 25 \frac{1}{2} \).
If you're solely looking for numeric equivalence in terms of the simplest decimal, \( 25 \frac{1}{2} \) is \( 25.5 \).
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