First change 1/8 and 1.9% to a decimal.
1/8 = .125
1.9% = .019
Now lets order them.
To order them we look at the first number after the decimal and compare. We see that 0.14 has a 1 and .125 has a 1 and .019 has a 0. Since 0 is less than the others it is first in our list. So 1.9% is first. Now lets look at .14 and .125.We look at the second number, which .14 has a 4 and .125 has a 2 so since 2 is less than 4 that means .125 1/8 is next in our list and then the only one we have left is .14 so that is last in our list
Our List / Order
.019, .125, .14
1.9%, 1/8, .14