Multiply and simplify completely, including the elimination of all negative exponents:

(3x75y3)5(53y634x8)\displaystyle {\left(\frac{{{3}{x}^{{7}}}}{{{5}{y}^{{3}}}}\right)}^{{5}}\cdot{\left(\frac{{{5}^{{3}}{y}^{{6}}}}{{{3}^{{4}}{x}^{{-{{8}}}}}}\right)}

Enter your answers for the numerator and denominator separately in the boxes below.
 
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