31.25% = 5⁄16
0.00032 = 32/100000 = 1/3125
0.288% = 9/3125
9/3125
0.3125 = 3125/10000 or 5/16 in fraction
?? 3125/1
3125/10,000 = 5/16
It is 3125/10000 which can be simplified, if you so require.
1/3125
6250/2
Use a calculator - 3125 divided by 5
1132/3125
0.003125 = 3125/1000000 or 1/320 in fraction