(2 4/9+1 1/6)×1 4/5-3 1/9÷ 2 1/3 95×0,21-14,3÷11 - вопрос №24911614531921395021143117778298 от ПолиночкаПолина 21.10.2021 20:56

Question

Математика: (2 4/9+1 1/6)×1 4/5-3 1/9÷ 2 1/3 95×0,21-14,3÷11

ПолиночкаПолина · Answer

1.(2 4/9 + 1 1/6 * 1 4/5 - 3 1/9 : 2 1/3 = 5 1/6,1) 2 4/9 + 1 1/6 = 22/9 + 7/6 = 44/18 + 21/18 = 65/18 = 3 11/18,2) 3 11/18 * 1 4/5 = 65/18 * 9/5 = 13/2 = 6 1/2,3) 3 1/9 : 2 1/3 = 28/9 : 7/3 = 28/9 * 3/7 = 4/3 = 1 1/3,4) 6 1/2 - 1 1/3 = (6 - 1) + (1/2 - 1/3) = 5 + (3/6 - 2/6) = 5 + 1/6 = 5 1/6,2.95 * 0,21 - 14,3 : 11 = 18,65,1) 95 * 0,21 = 19,95,2) 14,3 : 11 = 1,3,3) 19,95 - 1,3 = 18,65...