$\displaystyle - \frac{7}{2}$\displaystyle - \frac{7}{2}

$\displaystyle - \frac{7}{4}$\displaystyle - \frac{7}{4}

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

$\displaystyle - \frac{3}{4}$\displaystyle - \frac{3}{4}