Question

2 8/15-(1 3/10+2/5)

Пж.
Помогите.

Answer 1

$2 \frac{8}{15} - (1 \frac{3}{10} + \frac{2}{5} ) = \\ 2 \frac{8}{15} - (1 \frac{3}{10} + \frac{4}{10} ) = \\ 2 \frac{8}{15} - 1 \frac{7}{10} = 2 \frac{16}{30} - 1 \frac{21}{30 } = \\ 1 \frac{46}{30} - 1 \frac{21}{30} = \frac{25}{30} = \frac{5}{6}$

Answer 2

38/15-(13/10+2/5)=38/15-(13+4/10)=38/15-17/10=76-51/30=25/30=5/6