Answer:
[tex] \frac{15}{56} [/tex]
Step-by-step explanation:
We want to evaluate
[tex]xyz[/tex]
if
[tex]x = - \frac{4}{7} [/tex]
[tex]y = \frac{3}{4} [/tex]
[tex]z = - \frac{5}{8} [/tex]
We substitute these values to get:
[tex] - \frac{4}{7} \times \frac{3}{4} \times - \frac{5}{8} = \frac{15}{56} [/tex]
This is a proper fraction and
it is in the simplest form
