Import data Utility- convert decimal to fraction

Hi,

I have converted Microsoft Excel data into Oracle table using TOAD “Import data”
utility. It is converting data from fraction to decimal but I want data in fractions
in my table. Please let me know if it can be done.

expected result
Code Tol_minus tol_plus incr1 incr2
1.01 -1/2 1/4 3/4 1 3/4

Thanks
Sandy