1 8/11 + 2 2/19 * (1 4/5 - 2 3/4)
1)1 4/5 - 2 3/4 = 9/5 - 11/4 = (9*4 - 11*5)/20 = -19/20
2)2 2/19 * (-19)/20 = 40/19 * (-19)/20 = -2
3) 1 8/11 +(-2) = 19/11 - 2 = -3/11
1 8/11 + 2 2/19 * (1 4/5 - 2 3/4) = 1 8/11 + 2 2/19 * (-19/20) = 1 8/11 - 2 = -3/11