1. -1
2. -1
3. -1
4. -1
Пошаговое объяснение:
1) 3/8×(-2 2/3)= 3/8 * (-8/3) = -1
2)-1,6×5/8= -16/10 * 5/8 = -8/5 * 5/8 = -1
3)-7/8×1 1/7= -7/8 * 8/7 = -1
4)4 2/3×(-3/14)= 14/3 * (-3/14) = -1
1. -1
2. -1
3. -1
4. -1
Пошаговое объяснение:
1) 3/8×(-2 2/3)= 3/8 * (-8/3) = -1
2)-1,6×5/8= -16/10 * 5/8 = -8/5 * 5/8 = -1
3)-7/8×1 1/7= -7/8 * 8/7 = -1
4)4 2/3×(-3/14)= 14/3 * (-3/14) = -1