4) \( 3 \frac{1}{3}-4 \frac{2}{5} \)

First, let's convert those mixed numbers into improper fractions for easier calculation. For \( 3 \frac{1}{3} \), you multiply the whole number 3 by the denominator 3, add the numerator 1, giving you \( \frac{10}{3} \). For \( 4 \frac{2}{5} \), do the same: \( 4 \times 5 + 2 = 22 \), leading to \( \frac{22}{5} \). Now you have \( \frac{10}{3} - \frac{22}{5} \). Next, find a common denominator, which would be 15 in this case. Rewriting the fractions gives you \( \frac{50}{15} - \frac{66}{15} \). Subtracting these, you get \( \frac{50 - 66}{15} = \frac{-16}{15} \). So, the final answer is \( -\frac{16}{15} \) or \( -1 \frac{1}{15} \).