To divide two fractions, you can multiply the first fraction by the reciprocal of the second fraction.
So, to calculate \(-\frac{5}{8} \div -\frac{2}{3}\), we can rewrite it as:
\[ -\frac{5}{8} \times -\frac{3}{2} \]
Now, multiplying the numerators and the denominators:
- Multiply the numerators: \(-5 \times -3 = 15\)
- Multiply the denominators: \(8 \times 2 = 16\)
Putting it together, we get:
\[ \frac{15}{16} \]
Therefore, the quotient of \(-\frac{5}{8}\) divided by \(-\frac{2}{3}\) is \(\frac{15}{16}\).