\(a.\dfrac{x}{6}=\dfrac{18}{120}.\Leftrightarrow\dfrac{x}{6}=\dfrac{3}{20}.\Rightarrow x=\dfrac{9}{10}.\\ b.\dfrac{44:x}{66}=\dfrac{1}{3}.\Leftrightarrow\dfrac{44:x}{66}=\dfrac{22}{66}.\Rightarrow44:x=22.\Leftrightarrow x=2.\)
\(a,\dfrac{3}{6}=\dfrac{18}{120}\)
\(b,\dfrac{44:2}{66}=\dfrac{1}{3}\)
