$$\frac{1}{4}$$ of the beads in a box are blue. $$\frac{1}{3}$$ of the blue beads are small. lf there are $$700$$ small blue beads, how many beads are there altogether in the box? 
Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Finding the Base
$\frac{1}{4}\times\frac{1}{3}=\frac{1}{12}$ of the total beads are small blue beads.  $700\times12=8400$ 