SALUT!
[tex]2 \frac{2}{5} - \frac{4}{5} \div ( - \frac{8}{9}) = \\ \\ \frac{12}{5} + \frac{4}{5} \times \frac{9}{8} \\ \\ \frac{12}{5} + \frac{1}{5} \times \frac{9}{2} \\ \\ \frac{12}{5} + \frac{9}{10} \\ \\ = \frac{33}{10} [/tex]
[tex]2 \frac{2}{3} - ( - \frac{5}{18} ) \div ( - \frac{20}{3} ) \\ \\ \frac{8}{3} + \frac{5}{18} \div ( - \frac{20}{3} ) \\ \\ \frac{8}{3} - \frac{5}{18} \times \frac{3}{20} \\ \\ \frac{8}{3} - \frac{1}{6} \times \frac{1}{24} \\ \\ = \frac{21}{8} [/tex]
SUCCES!
