Answer:
3/8
Step-by-step explanation:
The expression can be rewritten as b + 1/8 + c
substitute b and c
2 + 1/8 - 7/4 = 16/8 + 1/8 - 14/8 = 3/8
b - (-1/8) +c
Subtracting a negative is adding
b+1/8+c
Let b =2 and c = -7/4
2+1/8 - 7/4
2 1/8 - 7/4
Getting a common denominator
2 1/8 - 7/4*2/2
2 1/8 - 14/8
Changing to an improper fraction
17/8 - 14/8
