Пошаговое объяснение:
(5/7 * 7/3 * 5/6 -1) : ( 1-7/8 * 8/5 * 3/14)= (5/3 * 5/6 -1) : (1 - 7/5 *3/14)=
=(10/18-1) : (1-3/10)= -8/10*10/7= -8/7= -1 1/7
Пошаговое объяснение:
(5/7 * 7/3 * 5/6 -1) : ( 1-7/8 * 8/5 * 3/14)= (5/3 * 5/6 -1) : (1 - 7/5 *3/14)=
=(10/18-1) : (1-3/10)= -8/10*10/7= -8/7= -1 1/7