a.\(\dfrac{-1}{8}\)

b.\(\dfrac{-3}{6}\)

c.\(\dfrac{7}{8}\)

d.\(\dfrac{12}{15}\)

e.0

f.0

\(\dfrac{2}{3}x=2-\dfrac{4}{5}\)

\(\dfrac{2}{3}x=\dfrac{10-4}{5}\)

\(\dfrac{2}{3}x=\dfrac{6}{5}\)

\(x=\dfrac{6}{5}:\dfrac{2}{3}\)

x=\(\dfrac{18}{10}\)

KT khảo sát = thi =))

\(\dfrac{10}{6}\)

có máy ah chị giải giùm rùi kìa =))