8/3-(5/4 -1/2 + 1/3) + [7/6 + 1/3 - (7/4 - 1 -2/3)]
8/3-(5/4 -1/2 + 1/3) + [7/6 + 1/3 - (7/4 - 1 -2/3)]
8/3-(5/4 -1/2 + 1/3) + [7/6 + 1/3 - (7/4 - 1 -2/3)] =
8/3-(15-6+4)/12 + [(7+2)/6-(21-12-8)/12] =
(32-13)/12+(18-1)/12 =
19/12+17/12 = 36/12 = 3,00