(3/4)² + 0,8 * 3 1/8 = 3 1/16
1) 0,8 * 3 1/8 = 8/10 * 25/8 = 4/5 * 25/8 = 1/1 * 5/2 = 5/2
2) (3/4)² + 5/2 = 9/16 + 5/2 = 9/16 + 40/16 = 49/16 = 3 1/16
(87 - 2) : 5 = 17
87 : 17 = 5 (ост. 2)
19 * 3 + 4 = 61
61 : 19 = 3 (ост. 4)
(99 - 9) : 2 = 45
99 : 45 = 2 (ост. 9)
(49 - 4) : 15 = 3
49 : 3 = 15 (ост. 4)
8 * 12 + 7 = 103
103 : 8 = 12 (ост. 7)
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