Compare these fractions.  $$\frac{3}{8}$$~\uline{~~~~~~~~~~}~$$\frac{1}{2}$$, $$\frac{5}{18}$$~\uline{~~~~~~~~~~}~$$\frac{1}{3}$$ 
Overseas Competition->Knowledge Point->Calculation Modules->Comparing, Ordering and Estimating->Comparing and Ordering
$$\frac{3}{8}\textless\frac{4}{8}$$;~$$\frac{5}{18}\textless\frac{6}{18}$$. 