ОЧЕНЬ СРОЧНО ПОМОГИТЕ ​

[tex] \frac{ - 5 \times 1 \frac{3}{5} \div ( - 1 \frac{2}{7} ) }{ - 3.15 \div ( - 8.1)} =16 \\ 1) \: - 5 \times 1 \frac{3}{5} = - \frac{5 \times 8}{5} = - 8 \\ 2) - 8 \div ( - 1 \frac{2}{7} ) = \frac{8 \times 7}{9} = \frac{56}{9} \\ 3) \: - 3.15 \div ( - 8.1) = \frac{63 \times 10}{20 \times 81} = \frac{7}{2 \times 9} = \frac{7}{18} \\ 4) \: \frac{56}{9} \div \frac{7}{18} = \frac{56 \times 18}{9 \times 7} = 8 \times 2 = 16[/tex]