## Elementary Algebra

$-4$
RECALL: $\frac{a}{b}\div\frac{c}{d} =\frac{a}{b}\times\frac{d}{c}$ We use the rule above to obtan: $(-\frac{2}{3})\times(\frac{3}{4})\times\frac{8}{1}$ Then, we multiply the numerators by each other and multiply the denominators by each other: $-\frac{2\times3\times8}{3\times4\times1}$ Now, we cancel out the common factors in the numerator and the denominator to simplify the expression: $-\frac{2\times3\times8}{3\times4\times1}=-\frac{2\times1\times8}{1\times4\times1}=-\frac{2\times1\times2}{1\times1\times1}=-4$