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(8 целых1/6-5/18) : 14/27 - (10 целых7/8:3/4*2/3+5 целых3/7:6 целых1/3) * 3/17 = 13 целых5/14

8_1/6 - 5/18 = 49*3/18 - 5/18 = 142/18

142/18 : 14/27 = 142/18 * 27/14 = 71*3/14 = 213/14

10_7/8:3/4 = 87/8 * 4/3 = 29/2

29/2 * 2/3 = 29/3

5_3/7 : 6_1/3 = 38/7 : 19/3 = 38/7 * 3/19 = 6/7

29/3 + 6/7 = (29*7 + 6*3) / (3*7) = 221/21

221/21 * 3/17 = 13/7

213/14 - 13/7 = 213/14 - 26/14 = 187/14 = 13_5/14