\(\dfrac{-11}{23}\).\(\dfrac{62}{15}\)+\(\dfrac{8}{5}\).\(\dfrac{-11}{23}\)-\(\dfrac{1}{23}\)
=\(\dfrac{-11}{23}\).\(\left(\dfrac{62}{15}+\dfrac{8}{15}\right)\)-\(\dfrac{1}{23}\)
=\(\dfrac{-11}{23}\).\(\dfrac{14}{3}\)-\(\dfrac{1}{23}\)
=\(\dfrac{-154}{69}\)-\(\dfrac{1}{23}\)
=\(\dfrac{-154}{69}\)-\(\)\(\dfrac{3}{69}\)
=\(\dfrac{-151}{69}\)
Chúc bn hc tốt!