[tex] \frac{1}{2} \times 5 \frac{1}{3} - 0.25 \div( - \frac{1}{8} ) = [/tex]

[tex] \frac{1}{2} \times 5 \frac{1}{3} - 0.25 \div - \frac{1}{8} \\ = \frac{1}{2} \times \frac{16}{3} - 0.25 \times - \frac{8}{1} \\ = \frac{16}{6} + 2 \\ = \frac{8}{3} + \frac{6}{3} = \frac{14}{3} = 4 \frac{2}{3} [/tex]