Завдання 1301 - 1401 » 1371

Обчисліть: 1) –2/9 : (–18) = 2/9 ∙ 1/18 = 1/81; 2) –3/11 : (–11/15) = 3/11 ∙ 15/11 = 45/121; 3) 1/24 : (–7/12) = 1/24 ∙ (–12/7) = –1/14; 4) –18/25 : (–0,36) = 18/25 ∙ 25/9 = 2; 5) –1/12 : (–2/15) = 1/12 ∙ 15/2 = 5/8; 6) –7 : (–1/14) = 7 ∙ 14 = 98.