a) \( 3 / 2-2 / 3 \).

Did you know that to subtract fractions like \( \frac{3}{2} - \frac{2}{3} \), you first need a common denominator? Here, the least common multiple of 2 and 3 is 6. So, you'll convert each fraction: \( \frac{3}{2} \) becomes \( \frac{9}{6} \) and \( \frac{2}{3} \) becomes \( \frac{4}{6} \), making the subtraction super easy! Once you have them with the same denominator, it’s a breeze! Just subtract the numerators: \( \frac{9}{6} - \frac{4}{6} = \frac{5}{6} \). Voila! You've successfully tackled the fraction subtraction like a pro!