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

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