Question

$frac{ a^{-3}* a^{ frac{7}{3} } }{ a^{ frac{1}{3} } }$

Answer 1

$frac{a^{-3}*a^{frac{7}{3}}}{a^{frac{1}{3}}}=$$\\a^{-3+frac{7}{3}-frac{1}{3}}=a^{-1}=frac{1}{a}$