Вычислите: - 1/3 * 2 2/5 * (-7) -4/9 * 3/8 -7/8 * (-2/7) -1 1/2 * 2/3 2 1/5 * (-3/22)

Question

Вычислите:
- 1/3 * 2
2/5 * (-7)
-4/9 * 3/8
-7/8 * (-2/7)
-1 1/2 * 2/3
2 1/5 * (-3/22)

Answer 1

 -1/3 * 2 = -1/3*2/1 = -1*2/3*1 = -2/3

2/5 * (-7) = -14/5 или -2 4/5

-4/9 * 3/8 = -1/3*1/2 = -1/6

-7/8 * (-2/7) = 1/4

-1 1/2 * 2/3 = -1*1/3 = -1/3

2 1/5 * (-3/22) = -1/5*3/11 = -3/55