$\displaystyle \left(- \frac{3}{2} \right)$\displaystyle \left(- \frac{3}{2} \right)

$\displaystyle \frac{3}{2}$\displaystyle \frac{3}{2}

$\displaystyle \frac{2}{3}$\displaystyle \frac{2}{3}

$\displaystyle \left(- \frac{2}{3} \right)$\displaystyle \left(- \frac{2}{3} \right)