Charles spent more than $7

Charles spent less than $7

Charles spent exactly $6.78

Charles spent exactly $5.78

Charles spent more than $6.50

 $5\ \frac{5}{12}$  

 $5\ \frac{11}{12}$  

 $6\ \frac{5}{12}$  

 $6\ \frac{11}{12}$  

 $6\ \frac{9}{12}$  

$\frac{5}{28}$

$\frac{7}{11}$

$\frac{5}{11}$

$\frac{23}{28}$