Question

Смешанная дробь б) 2 8/15 - (1 3/10 + 2/5);​

Answer 1

$2 frac{8}{15} - (1 frac{3}{10} + frac{2}{5} ) = \ = 2 frac{8}{15} - (1 frac{3}{10} + frac{4}{10} ) =$

$= 2 frac{8}{15} - 1 frac{7}{10} = 2 frac{16}{30} - 1 frac{21}{30} = \ = 1 frac{46}{30} - 1 frac{21}{30} = frac{25}{30} = frac{5}{6}$

Ответ: $frac{5}{6}$