Question

[(5 sobre 6 + 1 sobre 2) + 2 sobre 3] - 2 sobre 3

Answer 1

[(5/6 + 1/2) + 2/3] - 2/3 
[(5/6 + 3/6) + 2/3] - 2/3
[8/6 + 2/3] - 2/3
[8/6 + 4/6] - 2/3
12/6 - 2/3
12/6 - 4/6
8/6