Пошаговое объяснение:
2 1/3 :( 5/8-8/3)-2*1 3/7=-4
1) 5/8-8/3= ((5*3)-(8*8))/24= (15-64)/24=-49/24
2) 2 1/3 : -49/24= 7/3 * 24/49= -8/7
3) 2 * 1 3/7= 2* 10/7= 20/7
4)-8/7-20/7=-28/7=-4
Пошаговое объяснение:
2 1/3 :( 5/8-8/3)-2*1 3/7=-4
1) 5/8-8/3= ((5*3)-(8*8))/24= (15-64)/24=-49/24
2) 2 1/3 : -49/24= 7/3 * 24/49= -8/7
3) 2 * 1 3/7= 2* 10/7= 20/7
4)-8/7-20/7=-28/7=-4