Question

6 целых 5/9 - (2 целых 5/9 + 7/9)

Answer 1

6 5/9 - ( 2 5/9 +7/9) = 6 5/9 - 2 5/9 - 7/9 = 4 - 7/9 = 36/9 - 7/9 = 
= 29/9 =  3  2/9

Answer 2

2целых 5/9 + 7/9 = 2 целых 12/9. 6целых 5/9 - 2целых 12/9= 3 целых 1/3