To solve this, we first need to find a common denominator for all the fractions, which in this case is 24.
-7/12 + 1/8 - 5/12 + 3/4= -14/24 + 3/24 - 10/24 + 18/24= -14 + 3 - 10 + 18 / 24= -3 / 24= -1/8
Therefore, -7/12 + 1/8 - 5/12 + 3/4 = -1/8.
To solve this, we first need to find a common denominator for all the fractions, which in this case is 24.
-7/12 + 1/8 - 5/12 + 3/4
= -14/24 + 3/24 - 10/24 + 18/24
= -14 + 3 - 10 + 18 / 24
= -3 / 24
= -1/8
Therefore, -7/12 + 1/8 - 5/12 + 3/4 = -1/8.