Answer:

- 11.2

Step-by-step explanation:

[tex]\frac{2}{5} + \frac{3}{7} -\frac{8}{5} + \frac{13}{6} - 15\\ = \frac{2}{5}-\frac{8}{5}+ \frac{3}{7} + \frac{13}{6} - 15\\= \frac{2-8}{5} + \frac{18+91}{42}-15\\ = \frac{109}{42}-\frac{6}{5} -15\\= 2.6 - 13.8\\= - 11.2\\[/tex]

Answer:

The answer is -13. 604 or -2857/210