а) - 2/3 3/4 (-4/5) = - 24 / 60 = - 2 / 5
б) 3 (-2/5) (-5/9) = 6/5
в) - 8 : 3/5 9/10 = -8 5/3 * 9/10 = - 120 / 30 = - 4
г) - 4/9 3/8 : (-2) = - 1/3 (-1/4) = 1/12
а) - 2/3 3/4 (-4/5) = - 24 / 60 = - 2 / 5
б) 3 (-2/5) (-5/9) = 6/5
в) - 8 : 3/5 9/10 = -8 5/3 * 9/10 = - 120 / 30 = - 4
г) - 4/9 3/8 : (-2) = - 1/3 (-1/4) = 1/12