Step 1 :First, we simplify the expression inside each parenthesis by applying the power of a power rule, which states that \((a^m)^n = a^{mn}\), and the product of powers rule, which states that \(a^m * a^n = a^{m+n}\).
Step 2 :Next, we simplify the fraction by applying the quotient of powers rule, which states that \(a^m / a^n = a^{m-n}\).
Step 3 :Finally, we simplify the expression to have positive exponents only. This involves applying the rule that \(a^{-n} = 1/a^n\).
Step 4 :The expression has been simplified, but it still contains negative exponents. We need to further simplify it to have positive exponents only.
Step 5 :The simplified expression with positive exponents only is \(\boxed{12y^{16}\sqrt{\frac{x^{6}}{y^{8}}}/x^{6}}\).