Question

2 целых 8/15-(1целая3/10+2/5)=?
5 класс​

Answer 1

$2 frac{8}{15} - 1 frac{3}{10} - frac{2}{5} = frac{38}{15} - frac{13}{10} - frac{2}{5} =$
$frac{38 times 2 - 13 times 3 - 2 times 6}{30} = frac{76 - 39 - 12}{30} = frac{25}{30} = frac{5}{6}$