a)
[tex] \frac{24}{15} \times ( - \frac{3}{2} ) + 13 \times \frac{6}{13} + \frac{12}{5} [/tex]
[tex] ( - \frac{12}{5} ) + 6 + \frac{12}{5} = 6[/tex]
b)
[tex] ( - \frac{2}{3} )^{4} \div \frac{2}{3} \div \frac{3}{2} [/tex]
[tex] \frac{16}{81} \times \frac{3}{2} \div \frac{3}{2} = \frac{16}{81} [/tex]
