[Propose] decimal columns propagates scale into BigDecim

I'm using Rails 2.2.2 and I'm having the same problem here.

d=BigDecimal('10',2)

=> #<BigDecimal:24647c0,'0.1E2',4(8)>

(d/3).to_s

=> "3.333333333333333333333333"

(d/3).to_f.round_with_precision(2)

=> 3.33

Do I have to convert always the BigDecimals to float in every math
operation and then use the round_with_precision ?

This has been solved in the 2.3 ?

patching the Rails is an option but ...

Any better ideas on how to accomplish that ?

thanks .....

r.