Решить пример.

2 1/6- 1 5/6+3 2/6 - 2 5/6

(9 12/25 - 8 16/25) +4 17/25

7 2/21- 2 10/21

2 1/6 - 1 5/6 + 3 2/6 - 2 5/6 = 5/61) 2 1/6 - 1 5/6 = 1 7/6 - 1 5/6 = 2/62) 2/6 + 3 2/6 = 3 4/6 3) 3 4/6 - 2 5/6 = 2 10/6 - 2 5/6 = 5/6 ------------------------------------------------------------------(9 12/25 - 8 16/25) + 4 17/25 = 5 13/251) 9 12/25 - 8 16/25 = 8 37/25 - 8 16/25 = 21/252) 21/25 + 4 17/25 = 4 38/25 = 5 13/25-------------------------------------------------------------------7 2/21 - 2 10/21 = 6 23/21 - 2 10/21 = 4 13/21