First, let's simplify the expression step by step:

(5/18 - 4/15) = (25/90 - 24/90) = 1/90

(1/90)/16 = 1/1440

3 14/15 = 59/15

((1/1440) + (59/15))/0.8

(1/1440 + 59/15) = (1/1440 + 2832/1440) = 2833/1440

(2833/1440)/0.8 = (2833/1440) * (1/0.8) = 3541.25/1440

Therefore, (5/18 - 4/15)/16 + 3 14/15)/0.8 = 3541.25/1440 = 2.4600694.