Question

а)(1 4/7 + 3 2/3) * 2/11 і б) (3 5/6-1 2/3) : 5/18 пллііііііііііііііііз ДАЮ 15 балііів

Answer 1

Ответ:

а) 14/7 = (71 + 4)/7 = 11/7

32/3 = (33 + 2)/3 = 11/3

(11/7 + 11/3) * 2/11 = 22/21 * 2/11 = 4/21

результат: 4/21

б) 35/6 = (63 + 5)/6 = 23/6

12/3 = (31 + 2)/3 = 5/3

(23/6 - 5/3) : 5/18 = (23/6 - 10/6) * 18/5 = 13/6 * 18/5

13/6 * 18/5 = (13 * 18) / (6 * 5) = 234/30 = 39/5

результат: 39/5 або 74/5