D

~ Học tốt ~

A

mik k tin mấy

bn đang thi hả

A

\(\dfrac{12}{-24}\) = \(\dfrac{-12}{24}\) = \(\dfrac{-12:12}{24:12}\) = \(\dfrac{-1}{2}\)

\(\dfrac{-39}{75}\) = \(\dfrac{-39:3}{75:3}\) = \(\dfrac{-3}{25}\)

\(\dfrac{132}{-264}\) = \(\dfrac{-132}{264}\) = \(\dfrac{-132:132}{264:132}\) = \(\dfrac{-1}{2}\)

D