\(\dfrac{2}{5}+\dfrac{1}{6}\times\dfrac{6}{7}=\dfrac{2}{5}+\dfrac{6}{42}=\dfrac{2}{5}+\dfrac{1}{7}=\dfrac{14}{35}+\dfrac{5}{35}=\dfrac{19}{35}\)
2/5 + 1/6 x 6/7 =2/5+1/7=14/35+5/35=19/35
\(\dfrac{2}{5}+\dfrac{1}{6}\times\dfrac{6}{7}=\dfrac{2}{5}+\dfrac{1}{7}=\dfrac{14}{35}+\dfrac{5}{35}=\dfrac{19}{35}\)
\(\dfrac{2}{5}\)+\(\dfrac{6}{42}\)=\(\dfrac{84}{210}\)+\(\dfrac{30}{210}\)=\(\dfrac{114}{210}\)=\(\dfrac{38}{\dfrac{70}{ }}\)