14 7/15 - 3 3/23 * 23/27 - 1 1/5 * 1/6 = 11,6
1) 3 3/23 * 23/27 = 72/23 * 23/27 = 72/27 = 8/3 = 2 2/3
2) 1 1/5 * 1/6 = 6/5 * 1/6 = 1/5 = 0,2
3) 14 7/15 - 2 2/3 = 14 7/15 - 2 10/15 = 13 22/15 - 2 10/15 = 11 12/15 = 11 4/5 = 11,8
4) 11,8 - 0,2 = 11,6
ответ: 11,6
14 7/15 - 3 3/23 * 23/27 - 1 1/5 * 1/6 = 11,6
1) 3 3/23 * 23/27 = 72/23 * 23/27 = 72/27 = 8/3 = 2 2/3
2) 1 1/5 * 1/6 = 6/5 * 1/6 = 1/5 = 0,2
3) 14 7/15 - 2 2/3 = 14 7/15 - 2 10/15 = 13 22/15 - 2 10/15 = 11 12/15 = 11 4/5 = 11,8
4) 11,8 - 0,2 = 11,6
ответ: 11,6