СРОЧНО!!!! дам 40 баллов ​

1)

[tex](6.4 - 16) \times \frac{1}{8} = \frac{64}{10 \times 8} - \frac{16}{8} = \frac{8}{10} - 2 = \\ = 0.8 - 2 = - 1.2[/tex]

2)

[tex]( \frac{11}{12} + \frac{7}{18} ) \times 36 = \frac{11 \times 36}{12} + \frac{7 \times 36}{18} = 33 + 14 = 47[/tex]