Завдання 1403 - 1500 » 1494

Обчисли. – 15/13(1,96 : (–12/5) + (–24/9) : (–11/18)) = –1. 1) 1,96 : (–12/5) = 1,96 : (–1,4) = –1,4; 2) 24/9 : (–11/18) = (22 ∙ 18)/(9 ∙ 11) = 4; 3) –1,4 + 4 = 2,6; 4) – 5/13 · 2,6 = – (5 ∙ 26)/(13 ∙ 10) = –1.