Пошаговое объяснение:
(14-2 11/12 : 7/8 ) * 5/13= 27 11/15
1) 2 11/12 : 7/8 = 35/12 * 8/7 = 10/3 = 3 1/3
2) 14 - 3 1/3 = 42/3 - 10/3 = 32/3 = 10 2/3
3) 10 2/3 : 5/13 = 32/3 : 5/13 = 32/3 * 13/5 = 416/15=27 11/15
