Пошаговое объяснение:
(1 5/6 - 1 1/3) * 3= (11/6-4/3)*3=(11/6-8/6)*3=3/6*3=9/6=3/2=1,5
(1 5/6-1 1/3)×3=1/2.
(1-1)+(5/6-1/3)=(1-1)+(5×3-1×6)/(6×3)=0+(15-6)/18=9/18=1/2.
