The order of these numbers from Least to Greatest is:
8.104, 8.14, 8.1422, 8.8
The answer has been determined by looking at the numbers after the decimal point. If two numbers are the same after the decimal, for instance in the case of 8.14 and 8.1422, then next number will be considered. In the example just mentioned, while 8.1422 has 2 in third place, 8.14 has 0 in third place and so 8.14 is smaller than 8.1422.