\(\dfrac{3}{7}\): \(\dfrac{1}{3}\) + \(\dfrac{2}{7}\) \(\times\) \(\dfrac{1}{7}\)
= \(\dfrac{3}{7}\) \(\times\) \(\dfrac{3}{1}\) + \(\dfrac{2}{49}\)
= \(\dfrac{9}{7}\) + \(\dfrac{2}{49}\)
= \(\dfrac{63}{49}\) + \(\dfrac{2}{49}\)
= \(\dfrac{65}{49}\)