Khan Academy Adding \& subtra Reduce to simplest form. \[ -\frac{5}{8}+\left(-\frac{8}{5}\right)= \] Stuck? Review related articles/videos or us

Step 1 ：The problem is asking to add two fractions. The first fraction is \(-\frac{5}{8}\) and the second fraction is \(-\frac{8}{5}\).

Step 2 ：To add these fractions, we need to find a common denominator. The common denominator of 8 and 5 is 40.

Step 3 ：So, we need to convert both fractions to have this common denominator and then add them.

Step 4 ：The result of adding the two fractions is \(-\frac{89}{40}\). This fraction is already in its simplest form, so there is no need to simplify it further.

Step 5 ：Final Answer: The final answer is \(\boxed{-\frac{89}{40}}\).