${\left( {\frac{1}{2}} \right)^8}:{\left( {\frac{1}{2}} \right)^2}$ và ${\left( {\frac{1}{2}} \right)^3}\,\,.\,\,{\left( {\frac{1}{2}} \right)^3}$ ;

${\left( {\frac{1}{2}} \right)^8}:{\left( {\frac{1}{2}} \right)^2}$ và

${\left( {\frac{1}{2}} \right)^3}\,\,.\,\,{\left( {\frac{1}{2}} \right)^3}$ ;

(12)8:(12)2{\left( {\frac{1}{2}} \right)^8}:{\left( {\frac{1}{2}} \right)^2} và (12)3.(12)3{\left( {\frac{1}{2}} \right)^3}\,\,.\,\,{\left( {\frac{1}{2}} \right)^3};