Решите дроби: (3/4+1/6):3+(5/6-1/2):9

(3/4 + 1/6) / 3 + (5/6 - 1/2) / 9 = 37/108;

Первое действие.

3/4 + 1/6 = 9/12 + 2/12 = (9 + 2)/12 = 11/12;

2-ое действие.

11/12 / 3 = 11/12 / 3/1 = 11/12 * 1/3 = 11 * 1/12 * 3 = 11/36;

Третье деянье.

5/6 - 1/2 = 5/6 - 3/6 = (5 - 3)/6 = 2/6 = 1/3;

4-ое деяние.

1/3 / 9 = 1/3 / 9/1 = 1/3 * 1/9 = 1 * 1/3 * 9 = 1/27;

5-ое действие.

11/36 + 1/27 = 33/108 + 4/108 = (33 + 4)/108 = 37/108;