One and a half is twelve eights.plus five eights, is seventeen eights. That is two and one eighth in total, or 2.125 in decimal.
0.06
0.625
It is 0.625
0.625
5.8
.88888 Or .625 if you mean "Five Eighths"
divide 5 into 8
2.625
0.625
5/8 = 0.625
5*8 = 40.