Question

Решитее??!?!?!?Пожалуйста

Answer 1

$=9\frac{2*8}{5*8}+\frac{3*5}{8*5}-4\frac{3*2}{20*2}=9\frac{16}{40}+\frac{15}{40}-4\frac{6}{40}=9\frac{31}{40}-4\frac{6}{40}=5\frac{25}{40}=5.625$

Answer 2

9 2/5 + 3/8 - 4 3/20 = 47/5 + 3/8 - 83/20 = (47/5) * 8 + (3/8) * 5 - (83/20) *2 = 376/40 + 15/40 - 166/40 = (376+15-166)/40 = 225/40 = 5 25/40 = 5 5/8 = 5,625
Ответ: 5 5/8 = 5,625