Answer
$\frac{-2}{7}$
Work Step by Step
$\frac{2}{5}$$\times$$\frac{-5}{7}$
Whenever you multiply a fraction, you multiply top and bottom
$\frac{2x(-5)}{5\times7 }$
so the result is $\frac{-10}{35}$
we can reduce the whole thing by dividing by 5
-2/7
