Let's solve the expression:

\[
-\dfrac{5}{8} + \left(-\dfrac{8}{5}\right)
\]

1. Combine the two fractions. To do this, first find a common denominator. The denominators are 8 and 5, so their least common denominator (LCD) is \( 40 \).

2. Rewrite both fractions with the denominator of 40:
\[
-\dfrac{5}{8} = -\dfrac{25}{40}, \quad -\dfrac{8}{5} = -\dfrac{64}{40}
\]

3. Now, add the two fractions:
\[
-\dfrac{25}{40} + \left(-\dfrac{64}{40}\right) = -\dfrac{25 + 64}{40} = -\dfrac{89}{40}
\]

So, the simplified result is:

\[
-\dfrac{89}{40}
\]

Let me know if you'd like more details or have any other questions!

Here are 5 related questions:
1. How do you convert a mixed fraction into an improper fraction?
2. What is the process for finding the least common denominator?
3. How do you add fractions with unlike denominators?
4. Can you explain the concept of negative fractions?
5. How would you subtract a fraction from a whole number?

**Tip:** Always simplify your fractions where possible, but in some cases, they may already be in their simplest form, like here!

-\dfrac{5}{8} + \left(-\dfrac{8}{5}\right)=

Learn how to solve the addition of negative fractions -5/8 + (-8/5) step-by-step by finding a common denominator. This problem covers key concepts like adding fractions with unlike denominators and working with negative numbers. Suitable for students in Grades 6-8.

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