# How do you simplify (14a^-4)/(20bc^-1) using only positive exponents?

$= \frac{7 c}{10 {a}^{4} b}$
${a}^{-} b = \frac{1}{a} ^ b$
$\frac{1}{a} ^ - b = {a}^{b} / 1 = {a}^{b}$
$\frac{14 {a}^{-} 4}{20 b {c}^{-} 1} = \frac{14}{20 {a}^{4} b {c}^{-} 1} = \frac{14 c}{20 {a}^{4} b} = \frac{7 c}{10 {a}^{4} b}$