From: Michael Ulm [mailto:michael.ulm / isis-papyrus.com] 
# > x = 1.0.to_dec / 3.0.to_dec
# > y = x + x + x
# > y == 1.0.to_dec # => false

hmm, i thought this was already answered by others.. gotta check..

irb(main):023:0* x=1.0.to_dec/3.0.to_dec
=> #<BigDecimal:b7e45e14,'0.3333333333 333333E0',16(24)>
irb(main):024:0> x+x+x == 1.0.to_dec
=> true

kind regards -botp