1)-3 1/3 + 2 5/6 = - 3 2/6 + 2 5/6 = - (3 2/6 - 2 5/6)= (2 8/6 - 2 5/6)= -3/6 = -1/2
(-3 1/3 + 2 5/6) * (-8 5/9 + 7 2/9) = 2/3 2) -8 5/9 + 7 2/9 = - (8 5/9 -7 2/9) = -13/9 = - 11/3
3) - 1/2 * (-1 1/3) = -1/2 * (-4/3) = 2/3
