Senior Mathematical Challenge 2015 Q7

$\frac{\left(\frac{1}{2}\right)}{\left(\frac{3}{4}\right)}$

$\frac{1}{\left(\frac{\left(\frac{2}{3}\right)}{4}\right)}$

$\frac{\left(\frac{\left(\frac{1}{2}\right)}{3}\right)}{4}$

$\frac{1}{\left(\frac{2}{\left(\frac{3}{4}\right)}\right)}$

$\frac{\left(\frac{1}{\left(\frac{2}{3}\right)}\right)}{4}$