$\displaystyle \frac{7}{8}$\displaystyle \frac{7}{8}

$\displaystyle \frac{1}{2}$\displaystyle \frac{1}{2}

$\displaystyle \frac{1}{4}$\displaystyle \frac{1}{4}

$\displaystyle \frac{1}{8}$\displaystyle \frac{1}{8}