2) 1/6 + 1/3 = 1/6 + 2/6 = 3/6
1 - 3/6= 3/6 = 1/2
Ответ: 1/2
3) (55 * 1/33) * (6 : 1/2) / (2 1/3 : 3 1/2 * 1 3/5)
1. 55 * 1/33 = 55/33
2. 6 : 1/2 = 6 * 2/1 = 12
3. 7/3 : 7/2 = 14/21 = 2/3
4. 2/3 * 8/5 = 16/15 = 1 1/15
5. 55/33 * 12 = 660/33 = 20
6. 20 : 16/15 = 20 * 15/16 = 300/16 = 18 12/16 = 18 3/4
Ответ: 18 3/4