Simplify the expression (x4y3)3(xy3)3x4y5\displaystyle \frac{{{\left({x}^{{4}}{y}^{{3}}\right)}^{{3}}{\left({x}{y}^{{3}}\right)}^{{-{{3}}}}}}{{{x}^{{4}}{y}^{{5}}}}

 

Write your answer with only positive exponents