Answer
$\frac{5}{6}$ $\times$ $\frac{9}{10}$ $\times$ $\frac{8}{7}$ = $\frac{6}{7}$
Work Step by Step
$\frac{5}{6}$ $\times$ $\frac{9}{10}$ $\times$ $\frac{8}{7}$ =
Multiply the numerators by each other, and multiply the denominators by each other
$\frac{5 \times 9\times8}{6\times10\times7}$ =
Factor the numerator and the denominator
$\frac{5 \times 3\times3\times2\times2\times2}{2\times3\times2\times5\times7}$ =
Cancel the common factors between the numerator and the denominator to obtain :
$\frac{3 \times 2}{7}$ =
$\frac{6}{7}$