\(G=\dfrac{\left(-2\right)}{3}+\dfrac{\left(-5\right)}{7}+\dfrac{2}{3}+\dfrac{\left(-2\right)}{7}\)
\(H=\dfrac{\left(-5\right)}{7}.\dfrac{2}{11}+\dfrac{\left(-5\right)}{7}.\dfrac{9}{11}\)
\(E=\dfrac{5}{7}.\dfrac{12}{11}+\dfrac{5}{7}.\dfrac{12}{11}-\dfrac{5}{7}.\dfrac{17}{11}\)
Tính giá trị biểu thức