[WP34s] Unexpected results in fraction mode

[Alberto Candel]

(06-11-2014 06:14 PM)Joe Horn Wrote:  FIX 11 mode: 400,000,000,001 / 66,666,666,667 (or 5 + 66,666,666,666 / 66,666,666,667).
This is the simplest fraction that rounds to 5.99999999999.

STD or FIX 10 (or less): 6.
As expected.

My HP Prime returns 5.99999999999 in Standard [Home] (!?)