Question : What is the value of $\frac{1}{7} \times \frac{1}{8} \div \frac{1}{4}+\frac{1}{3} \times \frac{1}{9}+\frac{1}{6} \div \frac{1}{12}$ of $\frac{3}{7}?$

Question : If $A=\frac{2}{3} \div \frac{4}{9}, B=\frac{6}{11} \times\frac{33}{12}$ and $C=\frac{1}{3} \times \frac{9}{2}$, then what is the value of $A \times B-C$?

Question : What is the value of $\frac{(45 \times 3 \div 27 \times 4)(81 \div 5 \times 85 \div 51)}{(108 \div 18 \times 7\div21)(133 \times 3 \div 38 \times 4)} ?$

Question : What is the value of $\frac{17-8 \times 5+4 \times 3}{5 \times 3 \div 6+2 \times 4} ?$

Question : What is the value of $\frac{49-7 \times 5+3 \times 21}{98+49 \times 2-195} ?$