1) 4. 2/3 * 6 = 28
2) 1. 23/42 * 3. 1/13 = 12. 8/21
3) 2. 1/8 * 1. 29/51 = 3. 1/3
4) 28 - 12. 8/21 = 15. 13/21
5) 15. 13/21 + 3. 1/3 = 17. 20/21
Ответ : 17. 20/21
1) 3. 10/3 * 3. 10/3 = 16. 2/3
2) 2. 13/16 * 2. 2/5 = 6. 3/4
3) 16. 2/3 - 6. 3/4 = 15. 11/12
Ответ : 15. 11/12