1,4 - 1 1/2 * (1 2/5 + 1/5)
7/5 - 3/2 * (7/5 + 1/5)
7/5 - 3/2 * 8/5
7/5 - 3 * 4/5
7/5 - 12/5 = - 1
-1
Пошаговое объяснение:
1) 1. 2/5 + 1/5 = 1. 3/5
2) 1. 1/2 * 1. 3/5 = 3/2 * 8/5 = 3/1 * 4/5 = 12/5 = 2,4
3) 1,4 - 2,4 = -1
1,4 - 1 1/2 * (1 2/5 + 1/5)
7/5 - 3/2 * (7/5 + 1/5)
7/5 - 3/2 * 8/5
7/5 - 3 * 4/5
7/5 - 12/5 = - 1
-1
Пошаговое объяснение:
1) 1. 2/5 + 1/5 = 1. 3/5
2) 1. 1/2 * 1. 3/5 = 3/2 * 8/5 = 3/1 * 4/5 = 12/5 = 2,4
3) 1,4 - 2,4 = -1