g: \(\left(-\dfrac{3}{7}\right)^2=\dfrac{\left(-3\right)^2}{7^2}=\dfrac{9}{49}\)
h: \(\left(-\dfrac{1}{4}+\dfrac{3}{12}\right)\cdot\dfrac{-2023}{2022}=\left(-\dfrac{1}{4}+\dfrac{1}{4}\right)\cdot\dfrac{-2023}{2022}\)
\(=0\cdot\dfrac{-2023}{2022}=0\)
i: \(-\dfrac{2}{5}:\dfrac{4}{10}-\dfrac{4}{7}=\dfrac{-2}{5}\cdot\dfrac{10}{4}-\dfrac{4}{7}=-1-\dfrac{4}{7}=-\dfrac{11}{7}\)
k: \(\dfrac{1}{4}+\dfrac{3}{4}\cdot\left(-\dfrac{1}{2}+\dfrac{2}{3}\right)\)
\(=\dfrac{1}{4}+\dfrac{3}{4}\cdot\dfrac{-3+4}{6}\)
\(=\dfrac{1}{4}+\dfrac{3}{4}\cdot\dfrac{1}{6}=\dfrac{1}{4}+\dfrac{1}{8}=\dfrac{3}{8}\)
l: \(-\dfrac{5}{9}+\dfrac{5}{9}:\left(\dfrac{2}{3}-\dfrac{1}{12}\right)\)
\(=\dfrac{-5}{9}+\dfrac{5}{9}:\dfrac{8-1}{12}\)
\(=\dfrac{-5}{9}+\dfrac{5}{9}\cdot\dfrac{12}{7}\)
\(=\dfrac{5}{9}\left(-1+\dfrac{12}{7}\right)=\dfrac{5}{9}\cdot\dfrac{5}{7}=\dfrac{25}{63}\)
m: \(-\dfrac{1}{5}\cdot\dfrac{15}{7}-\dfrac{4}{7}=\dfrac{-15}{35}-\dfrac{4}{7}=\dfrac{-3}{7}-\dfrac{4}{7}=-\dfrac{7}{7}=-1\)
