$\frac{1}{3}$  

 $-\frac{1}{3}$  

 $-1\ \frac{1}{6}$  

 $1\ \frac{1}{3}$  

none of these

 $-\frac{1}{3}$  

 $\frac{13}{30}$  

 $-1\ \frac{1}{6}$  

 $\frac{1}{6}$  

none of these

 $\frac{1}{30}$  

 $\frac{5}{6}$  

 $1\ \frac{1}{5}$  

 $30$  

none of these

 $\frac{7}{13}$  

 $\frac{1}{2}$  

 $\frac{91}{36}$  

 $1\ \frac{6}{7}$  

none of these

 $2$  

 $-2$  

 $-8$  

 $8$  

none of these

 $\frac{14}{15}$  

 $\frac{32}{105}$  

 $\frac{35}{24}$  

 $-\frac{16}{105}$  

none of these