Ответы на вопрос:
1) 2 1/5 +8/15=2 3+8/15=2 11/15 2) 1 1/2: 2 11/15= 3/2*15/41=45/82 3) 45/82*1 4/5=45/82*9/5=81/82 4) 4 5/12-81/82=53/12-81/82=(4346-972)/984=3374/984=3 422/984= 3 211/492
45/12-1 1/2: (2 1/6 + 8/15)* 1 4/5=53/12 - 3/2: (13/6 + 8/15)* 9/5 = 53/12 - 3/2: (65/30 + 16/30)*9/5 = 53/12 - 3/2: 81/30*9/5 = = 53/12 - 3/2: 81/30*9/5 =53/12 - 3/2*30/81*9/5 = 53/12 - 1 = 53/12 - 12/12 = 41/12 = = 3 5/12============================================================-
Популярно: Математика
-
165200114.08.2021 11:33
-
aldyman25.12.2021 01:48
-
Almira20714.10.2020 07:49
-
божена200629.05.2021 12:17
-
superakkroyale220.05.2023 18:46
-
Dmitry8104.03.2022 12:55
-
namdokp09srw06.10.2020 15:08
-
schoolboy37120.01.2021 11:46
-
Alisa1Karimova10.04.2022 23:02
-
emiliahouse16.10.2021 11:29