Question

(-3 1/3•1,9+19,5:4 1/3):(0,16-62/75)

Answer 1

(-3 1/3 * 1,9 + 19,5 : 4 1/3) : (0,16 - 62/75) = 2 3/4   (или  2,75),

1) -3 1/3 * 1,9 = - 10/3 * 19/10 = -19/3 = -6 1/3,

2) 19,5 : 4 1/3 = 195/10 : 13/3 = 195/10 * 3/13 = 9/2 = 4 1/2   (или  4,5),

3) -6 1/3 + 4 1/2 = -19/3 + 9/2 = -38/6 + 27/6 = -11/6 = - 1 5/6,

4) 0,16 - 62/75 = 16/100 - 65/75 = 48/300 - 248/300 = -200/300 = -2/3,

5) -1 5/6 : (-2/3) = 11/6 * 3/2 = 11/4 = 2 3/4   (или  2,75)