Tính phép tính : a) 7/6 - 1/6 : 2/3
Giải thích
a) \(\frac{7}{6} - \frac{1}{6}:\frac{2}{3}\)\( = \frac{7}{6} - \frac{1}{6}.\frac{3}{2} = \frac{7}{6} - \frac{1}{4} = \frac{{14}}{{12}} - \frac{3}{{12}} = \frac{{11}}{{12}}\) b) \[13,3 \cdot 45--44 \cdot 13,3 = 13,3 \cdot \left( {45--44} \right) = 13,3 \cdot 1 = 13,3\]c) \(2001 - {\left( {\frac{1}{3}} \right)^2} \cdot {3^2} = 2021 - \frac{1}{{{3^2}}} \cdot {3^2} = 2020.\)