You can put this solution on YOUR website! first you have to change your fractions into decimals. You do that by dividing the bottom # over the top #.
so 5/8=.625
now you can figure out your problem
.625/8=12.8
you do the same for the next problem
1 5/8=1.625 and 2 1/2= 2.5
1.625/2.5=0.65