Найдите значение выражения: 1) 5/9 + 4/9 * 3 1/6 * (4/19 + 1 5/38 - 75/76); 2) (1 5/54 - 11/36) * 3 3/5 * 2 2/7 - 1 2/7 * 1 5/9.

1) 5/9 + 4/9 * 3 1/6 * (4/19 + 1 5/38 - 75/76) = 5/9 + 4/9 * 19/6 * (1 + (16+10-75) / 76) =

5/9 + 38/27 * (76+26-75) / 76=5/9 + 38/27 * 27/76=5/9 + 1/1 * 1/2=5/9+1/2 = (10+9) / 18=

19/18=1 1/8;

2) (1 5/54 - 11/36) * 3 3/5 * 2 2/7-1 2/7 * 1 5/9 = (59/54 - 11/36) * 18/5 * 16/7 - 9/7 * 14/9=

(59*2 - 11*3) / 3 * 1/5 * 8/7 - 1/1 * 2/1 = (118 - 33) / 3 * 1/5 * 8/7 - 2=85/3 * 1/5 * 8/7 - 2=

17/3 * 1/1 * 8/7 - 2=136/21 - 2=6 10/21 - 2=4 10/21