Question

\(\dfrac{2}{3}-\dfrac{3}{4}\) chỉ em nhé =) Em cảm ơn nhiều 

Answer 1

\(\dfrac{2}{3}-\dfrac{3}{4}=\dfrac{8}{12}-\dfrac{9}{12}=\dfrac{-1}{12}\)

Answer 2

\(\dfrac{2}{3}-\dfrac{3}{4}=\dfrac{8}{12}-\dfrac{9}{12}=-\dfrac{1}{12}\)

Answer 3

 

2 3−3423−34 = \(\dfrac{8}{12}\) - \(\dfrac{9}{12}\)= \(\dfrac{-1}{12}\)

Answer 4

\(\dfrac{2}{3}=\dfrac{2x4}{3x4}=\dfrac{8}{12}\)

\(\dfrac{3}{4}=\dfrac{3x3}{4x3}=\dfrac{9}{12}\)

=>\(\dfrac{8}{12}-\dfrac{9}{12}\)

=\(-\dfrac{1}{12}\)