$\displaystyle \frac{\sqrt{2}}{2}$\displaystyle \frac{\sqrt{2}}{2}

$\displaystyle \frac{5}{2}$\displaystyle \frac{5}{2}

$\displaystyle \frac{5\sqrt{2}}{2}$\displaystyle \frac{5\sqrt{2}}{2}

$5$5