Решите .16 целых 1/5: (-4 целых 1/2)*(-5/18)-9=

16 1/5 : (-4 1/2) * (-5/18) - 9 = -8,

1) 16 1/5 : (-4 1/2) = -81/5 : 9/2 = -81/5 * 2/9 = -18/5 = -3 3/5,
2) - 3 3/5 * (-5/18) = 18/5 * 5/18 = 1,
3) 1 - 9 = -8