а) 12/13 = 28812 = 288 * 1312 = 3744
б) 11/25 = 100111 = 1001 * 2511 = 25025
в) 15/23 = 715 = 7 * 2315 = 161
г) 13/40 = 6313 = 63 * 4013 = 2520
а) 12/13 = 288
12 = 288 * 13
12 = 3744
б) 11/25 = 1001
11 = 1001 * 25
11 = 25025
в) 15/23 = 7
15 = 7 * 23
15 = 161
г) 13/40 = 63
13 = 63 * 40
13 = 2520