Odpowiedzi

2009-10-14T20:04:05+02:00
2009-10-14T20:05:07+02:00
(-18/10*⅔-8/10*9/16):(-9/10*5/9-½) =
(6/5-9/20):(-½-½) =
(24/20-9/20):(-1) =
(15/20):(-1) =
-15/20 =
2009-10-14T20:10:17+02:00