Ответ:
1) 4
---- = 0,235294118
17
2) 263 23
х= ------ ; х= 8 ----- ; х=8,76
30 30
3) 76 14
---- = 2 ----
31 31
Пошаговое объяснение:
№1
1 - 13/17 = 17/17 - 13/17 = 4/17
№2
7 7/30 - (5 11/30 - х) = 3 19/30
5 11/30 - х = 7 7/30 - 3 19/30
5 11/30 - х = 6 37/30 - 3 19/30
5 11/30 - х = 3 18/30
х = 5 11/30 - 3 18/30
х = 4 41/30 - 3 18/30
х = 1 23/30
№3
1) 17/29 + 2 12/29 = 2 29/29 = 3
2) 3 - 17/31 = 2 31/31 - 17/31 = 2 14/31
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Answers & Comments
Ответ:
1) 4
---- = 0,235294118
17
2) 263 23
х= ------ ; х= 8 ----- ; х=8,76
30 30
3) 76 14
---- = 2 ----
31 31
Пошаговое объяснение:
№1
1 - 13/17 = 17/17 - 13/17 = 4/17
№2
7 7/30 - (5 11/30 - х) = 3 19/30
5 11/30 - х = 7 7/30 - 3 19/30
5 11/30 - х = 6 37/30 - 3 19/30
5 11/30 - х = 3 18/30
х = 5 11/30 - 3 18/30
х = 4 41/30 - 3 18/30
х = 1 23/30
№3
1) 17/29 + 2 12/29 = 2 29/29 = 3
2) 3 - 17/31 = 2 31/31 - 17/31 = 2 14/31