$\displaystyle \frac{4}{30}$\displaystyle \frac{4}{30}

$\displaystyle \frac{5}{30}$\displaystyle \frac{5}{30}

$\displaystyle \frac{6}{30}$\displaystyle \frac{6}{30}

$\displaystyle \frac{10}{30}$\displaystyle \frac{10}{30}