3.125
0.00125
3.125
One eighth in percent form is 12.5%.
18 (eighteen) is an integer and does not need to be "converted to a decimal"1/8 (one eighth) is a fraction and can be converted into a decimal: 0.125
One eighth is .125 in decimal, if that is what you're after, 5.375
8% = 0.08
6.08
1.125
.00125
0.125
0.125
0.125
0.125
0.125
.125
3.125