Question

найдите решение выражения
19/(2¼-⅔)

Answer 1

Ответ:

$1)2 \frac{1}{4} - \frac{2}{3} = 2 \frac{3}{12} - \frac{8}{12} = 1 \frac{15}{12} - \frac{8}{12} = 1 \frac{7}{12}$

$2)19 \div 1 \frac{7}{12} = 19 \div \frac{19}{12} = 19 \times \frac{12}{19} = 12$