Simplify ab2c3×a4b5c−6a−7b−8c9×a10b11c−12×a13b−14c15

1.	Simplify ab2c3×a4b5c−6a−7b−8c9×a10b11c−12×a13b−14c15
Answer» Simplify $\frac{a b^{2} c^{3} \times a^{4} b^{5} c^{- 6}}{a^{- 7} b^{- 8} c^{9} \times a^{10} b^{11} c^{- 12} \times a^{13} b^{- 14} c^{15}}$

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