-1 1/7 (4/5 + 19/20) (6 + 5/6 + 4 + 2/3) = -1/7 (79/100) (6 + 30/5 + 4 + 8/3) = -1/7 (79/100) (6 + 6 + 4 + 8/3) = -1/7 (79/100) (16 + 8/3) = -1/7 (79/100) (48/3 + 8/3) = -1/7 (79/100) (56/3) = -1/7 * (79/25) = -79/175
-1 1/7 (4/5 + 19/20) (6 + 5/6 + 4 + 2/3) = -1/7 (79/100) (6 + 30/5 + 4 + 8/3) = -1/7 (79/100) (6 + 6 + 4 + 8/3) = -1/7 (79/100) (16 + 8/3) = -1/7 (79/100) (48/3 + 8/3) = -1/7 (79/100) (56/3) = -1/7 * (79/25) = -79/175