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

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

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

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