$67.99 \%$ of $1401 - 13.99 \%$ of $1299 = ?$

What fraction must be subtracted from the sum of $\frac{1}{4}$ and $\frac{1}{6}$ to have an average of $\frac{1}{12}$ of all the three fractions?

What is the smallest value that must be added to $708$ so that the resultant is a perfect square?

Between two fractions $\frac{1}{2}$ and $\frac{1}{8},$ how many fractions are there in all?

The value of $\frac{(243)^{\frac{n}{5}} \times 3^{2n+1}}{9^{n} \times 3^{n-1}}$ is

$7 \frac{11}{18} + 13 \frac{1}{9} + 5 \frac{7}{9} - 16 \frac{2}{3} = ?$