Ответы на вопрос:
1) - 6 2/3 - 8,75 = - 20/3 - 8 3/4 = - 20/3 - 35/4 = - (80/12 + 105/12) = - 185/12 = - 15 5/12
2) - 3 7/15 + 0,4 - 6 1/3 = - 3 7/15 + 2/5 - 6 1/3 = - 52/15 + 2/5 - 19/3 = - 52/15 + 6/15 - 95/15 = - 1/15 * ( 52 - 6 + 95) = - 1/15 * 151 = - 151/15 = - 10 1/15
3)-1,5 - 3 4/5 - 8 3/20 = - 1 1/2 - 3 4/5 - 8 3/20 = - 3/2 - 19/5 - 163/20 = - 30/20 - 76/20 - 163/20 = - 1/20 * (30 + 76 + 163) = - 1/20 * 269 = - 269/20 = -13 9/20
4) - 2 5/8 - 9,25 - 3/4 = - 2,625 - 9,25 - 0,75 = - (2,625 + 9,25 + 0,75) = - 12,625 = 12 5/8
Популярно: Математика
-
winchester2405.09.2021 10:34
-
tonuo8405.07.2020 14:46
-
arina55601.09.2022 21:39
-
Ариунболор29.11.2020 22:00
-
Ulybaw31.01.2022 23:21
-
12345152915.07.2020 14:15
-
daria1980202.12.2022 01:10
-
Gdngz17.02.2021 22:07
-
одногоВоло20.04.2022 14:27
-
madina12345222.07.2022 11:08