Вычислите: -2,1*(1/6-0,5)

Question

Вычислите: -2,1*(1/6-0,5)

Answer 1

-2,1 * (1/6 - 0,5) = -2,1 * (1/6 - 1/2) = -2,1 * (1/6 - 3/6) =
= -2,1 * (-2/6) = 21/10 * 1/3 = 7/10  (или 0,7)

Answer 2

1) 1/6 - 0,5=1/6 - 1/2 =1/6 - 3/6 = -2/6 = -1/3
2) -2,1 * (-1/3) = 21/10 * 1/3 = 7/10 =0,7