Answer:
-7/40 (None of the above)
Explanation:
Given problem,
→ (1/4) + (1/5) + ((-3/4) + (1/8))
Let's simplify the problem,
→ (1/4) + (1/5) + ((-3/4) + (1/8))
→ ((5/20) + (4/20)) + ((-6/8) + (1/8))
→ ((5 + 4)/20) + ((-6 + 1)/8)
→ (9/20) + (-5/8)
→ (18/40) + (-25/40)
→ (18 +(-25))/40
→ (18 - 25)/40
→ -7/40
Hence, the answer is -7/40.