well, is just the quotient of 2 and 3/6 divided by 1/6, that many students.
let's convert the mixed fraction to "improper", and divide then.
[tex]\bf \stackrel{mixed}{2\frac{3}{6}}\implies \cfrac{2\cdot 6+3}{6}\implies \stackrel{improper}{\cfrac{15}{6}}\\\\
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\cfrac{\quad \frac{15}{6}\quad }{\frac{1}{6}}\implies \cfrac{15}{6}\cdot \cfrac{6}{1}\implies \cfrac{15}{1}\implies \stackrel{students}{15}[/tex]