Question

Помогите пж с этим
(3 5/12 + 4 7/12) - 5 2/9 =
12 2/12 - (7 4/15 + 2 8/15) =

Answer 1

$1) \\ ((3 + 4) + ( \frac{5}{12} + \frac{7}{12} )) - \frac{47}{9} = (7 + 1) - \frac{47}{9} = 8 - \frac{47}{9} = \frac{25}{9} = 2 \frac{7}{9} \\ \\ - - - - - - - - - - - - \\ \\ \frac{146}{12} - ((7 + 2) + ( \frac{4}{15} + \frac{8}{15} )) = \frac{146}{12} - (9 + \frac{4}{5} ) = \frac{146}{12} - 9 \frac{4}{5} = \frac{146}{12} - \frac{49}{5} = \frac{71}{30} = 2 \frac{11}{30}$