I had the same problem. Besides a large enough tally table, I think you need to change "Number BETWEEN 2 AND 200" to "Number BETWEEN 2 AND 1000" for three-digit precision decimals.

For this code, I think you need to adjust the precision you are allowing in the @Value and the Number range used in the tally table to match; otherwise some of these more precise fractions are going to fall through the cracks.

Really great idea, though... a little more time in the oven, a little more testing with high-precision values, and it'll be very cool!