12. \( 37 \frac{1}{2} \% \) of 48

To find \( 37 \frac{1}{2} \% \) of 48, we first convert the percentage into a decimal. \( 37 \frac{1}{2} \% \) is the same as \( 37.5 \% \) or \( 0.375 \). Now, we calculate: \[ 0.375 \times 48 = 18.0 \] So, \( 37 \frac{1}{2} \% \) of 48 is 18. If you’re looking for ways to remember percentage calculations, consider converting percentages to fractions. \( 37.5\% \) can be represented as \( \frac{3}{8} \). Multiplying by 48 then becomes easier: \( \frac{3}{8} \times 48 = 18 \)! When working with percentages, always watch out for common pitfalls like misplacing the decimal. Double-check your conversions! If you calculate \( 37.5\% \) as \( 0.0375 \), that would lead to a completely different (and wrong) answer.