Dạng 1:
\(1,=-\dfrac{5}{2}\\ 2,=\dfrac{2}{3}-\dfrac{1}{3}=\dfrac{1}{3}\\ 3,=\dfrac{4}{25}+\dfrac{11}{2}\cdot2-2=\dfrac{4}{25}+11-2=\dfrac{229}{25}\\ 4,=\dfrac{23}{5}\cdot\dfrac{3}{2}+\dfrac{6}{5}\cdot\dfrac{5}{2}=\dfrac{69}{10}+3=\dfrac{99}{10}\\ 5,=\dfrac{1}{2}+\dfrac{5}{6}\cdot\dfrac{17}{5}=\dfrac{17}{6}+\dfrac{1}{2}=\dfrac{10}{3}\\ 6,=\dfrac{11}{3}:\left(\dfrac{7}{3}-\dfrac{5}{2}\right)^2=\dfrac{11}{3}:\left(-\dfrac{1}{6}\right)^2=\dfrac{11}{3}\cdot36=132\\ 7,=\left(-\dfrac{13}{5}\right)\left(\dfrac{1}{6}+\dfrac{5}{3}\right)=\left(-\dfrac{13}{5}\right)\cdot\dfrac{11}{6}=-\dfrac{143}{30}\\ 8,=\dfrac{3}{8}\left(51\dfrac{1}{5}-27\dfrac{1}{5}\right)+19=\dfrac{3}{8}\cdot24+19=9+19=28\\ 9,=\left(-1\right):\left(-5\right)+\dfrac{1}{15}-\dfrac{1}{15}=\dfrac{1}{5}\)
