Завдання 1403 - 1500 » 1493

Виконай дії. –3,75 – (–13/4) · (62/7 – 23/7 : (–17/28)) = 14,25. 1) 23/7 : (–17/28) = – (17 ∙ 28)/(7 ∙ 17) = –4; 2) 62/7 – (–4) = 62/7 + 4 = 102/7; 3) –13/4 · 102/7 = – (7 ∙ 72)/(4 ∙ 7) = –18; 4) –3,75 – (–18) = 18 – 3,75 = 14,25.