3 5/12 - (-1 1/3) + (-3/8) - (-2 1/4) - 5 5/6
= 3 5/12 + 1 1/3 - 3/8 +2 1/4 - 5 5/6
= 39/12 + 4/3 - 3/8 + 9/4 - 35/6
= 117/36 + 48/36 - 9/36 + 81/36 - 210/36
= (117+48-9+81-210)/36
= 27/36
= 3/4
Therefore, the result is 3/4.
3 5/12 - (-1 1/3) + (-3/8) - (-2 1/4) - 5 5/6
= 3 5/12 + 1 1/3 - 3/8 +2 1/4 - 5 5/6
= 39/12 + 4/3 - 3/8 + 9/4 - 35/6
= 117/36 + 48/36 - 9/36 + 81/36 - 210/36
= (117+48-9+81-210)/36
= 27/36
= 3/4
Therefore, the result is 3/4.