Answer
$\frac{18}{5}$
Work Step by Step
RECALL:
$\frac{a}{b}\div\frac{c}{d} =\frac{a}{b}\times\frac{d}{c} $
We use the rule above to obtan:
$(\frac{3}{4})\times(\frac{4}{5})\times\frac{6}{1}$
Then, we multiply the numerators by each other and multiply the denominators by each other:
$\frac{3\times4\times6}{4\times5\times1}$
Now, we cancel out the common factors in the numerator and the denominator to simplify the expression:
$\frac{3\times4\times6}{4\times5\times1}=\frac{3\times1\times6}{1\times5\times1}=\frac{18}{5}$