\(\dfrac{7}{12}-\dfrac{1}{6}:\dfrac{2}{5}=\dfrac{7}{12}-\dfrac{5}{12}=\dfrac{2}{12}=\dfrac{1}{6}\)
\(2\times\dfrac{2}{3}+1=\dfrac{4}{3}+1=\dfrac{4}{3}+\dfrac{3}{3}=\dfrac{7}{3}\)
7/12 - 1/6 : 2/5 = 7/12 - 5/12 = 2/12 = 1/6
2 x 2/3 + 1 = 4/3 + 1 = 7/3