\(\dfrac{3}{5}\times\dfrac{2}{7}+\dfrac{3}{5}\times\dfrac{4}{7}+\dfrac{3}{5}\)
\(=\dfrac{3}{5}\times\left(\dfrac{2}{7}+\dfrac{4}{7}+1\right)\)
\(=\dfrac{3}{5}\times1\)
\(=\dfrac{3}{5}\)
\(\dfrac{3}{5}\times\dfrac{2}{7}+\dfrac{3}{5}\times\dfrac{4}{7}+\dfrac{3}{5}\)
\(=\dfrac{3}{5}\times\left(\dfrac{2}{7}+\dfrac{4}{7}+1\right)\)
\(=\dfrac{3}{5}\times1\)
\(=\dfrac{3}{5}\).
\(\dfrac{3}{5}\) \(\times\) \(\dfrac{2}{7}\) + \(\dfrac{3}{5}\) \(\times\) \(\dfrac{4}{7}\) + \(\dfrac{3}{5}\)
= \(\dfrac{3}{5}\) \(\times\) \(\dfrac{2}{7}\) + \(\dfrac{3}{5}\) \(\times\) \(\dfrac{4}{7}\) + \(\dfrac{3}{5}\) \(\times\) 1
= \(\dfrac{3}{5}\) \(\times\) ( \(\dfrac{2}{7}\) + \(\dfrac{4}{7}\) + 1)
= \(\dfrac{3}{5}\) \(\times\) ( \(\dfrac{2}{7}+\dfrac{4}{7}+\dfrac{7}{7}\))
= \(\dfrac{3}{5}\) \(\times\) \(\dfrac{13}{7}\)
= \(\dfrac{39}{35}\)
