\[\frac{{{4}^{-3}}\times {{a}^{-5}}\times {{b}^{-4}}}{{{4}^{-5}}\times {{a}^{-8}}\times {{b}^{3}}}\]=

\[8\frac{{{a}^{2}}}{{{b}^{-7}}}\]

\[16\frac{{{a}^{3}}}{{{b}^{7}}}\]

\[2\frac{{{a}^{-13}}}{{{b}^{-7}}}\]

\[\frac{{{a}^{8}}}{{{b}^{-1}}}\]

\[\frac{{{4}^{-3}}\times {{a}^{-5}}\times {{b}^{-4}}}{{{4}^{-5}}\times

1.	\[\frac{{{4}^{-3}}\times {{a}^{-5}}\times {{b}^{-4}}}{{{4}^{-5}}\times {{a}^{-8}}\times {{b}^{3}}}\]=
A.	\[16\frac{{{a}^{3}}}{{{b}^{7}}}\]
B.	\[8\frac{{{a}^{2}}}{{{b}^{-7}}}\]
C.	\[2\frac{{{a}^{-13}}}{{{b}^{-7}}}\]
D.	\[\frac{{{a}^{8}}}{{{b}^{-1}}}\]
Answer» B. \[8\frac{{{a}^{2}}}{{{b}^{-7}}}\]

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\[\frac{{{4}^{-3}}\times {{a}^{-5}}\times {{b}^{-4}}}{{{4}^{-5}}\times {{a}^{-8}}\times {{b}^{3}}}\]=

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