Question

Помогите пожалустааа​

Answer 1

$- 0.55 + ( \frac{13}{28} + ( - \frac{2}{7} )) = - \frac{13}{35} \\ 1) \: \frac{13}{28} + ( - \frac{2}{7} ) = \frac{13}{28} - \frac{8}{28} = \frac{5}{28} \\ 2) \: - 0.55 + \frac{5}{28} = - \frac{11}{20} + \frac{5}{28} = \frac{ - 77 + 25}{140} = - \frac{52}{140} = - \frac{13}{35}$