\(\dfrac{1-2x+3+2y+2x-4}{6xy}=\dfrac{2y}{6xy}=\dfrac{1}{3x}\)
\(\dfrac{3+2x-3-4x}{6x}=\dfrac{-2x}{6x}=-\dfrac{1}{3}\)
\(\dfrac{\left(1-2x\right)2xy}{6xy.3.\left(1-2x\right)}=\dfrac{2xy}{18xy}=\dfrac{1}{9}\)
chi tiết rùi k ghi lại đề thui
\(\dfrac{1-2x}{6xy}.\dfrac{2xy}{3\left(1-2x\right)}=\dfrac{\left(1-2x\right)\left(2xy\right)}{\left(6xy\right).\left(3\left(1-2x\right)\right)}\)
\(=\dfrac{2xy}{6xy.3}\)(rút gọn 1-2x )
\(=\dfrac{2xy}{18xy}=\dfrac{2xy:2xy}{18xy:2xy}=\dfrac{1}{9}\)
( zừa lòng chx =='')