=7/12+6/36
=21/36+6/36
=27/36=3/4
\(\dfrac{7}{12}+\dfrac{3}{4}x\dfrac{2}{9}=\dfrac{7}{12}+\dfrac{1}{6}=\dfrac{7}{12}+\dfrac{2}{12}=\dfrac{9}{12}=\dfrac{3}{4}\)
\(\dfrac{7}{12}+\dfrac{3}{4}\cdot\dfrac{2}{9}=\dfrac{7}{12}+\dfrac{1}{6}=\dfrac{7+2}{12}=\dfrac{9}{12}=\dfrac{3}{4}\)