Calculate the left and right Riemann sums for ${\int }_2^8\frac{6}{x}dx$ using $n=6$ subintervals.

Left Riemann Sum: $\frac{669}{70}$

Right Riemann Sum: $\frac{1023}{140}$

Left Riemann Sum: $\frac{1023}{140}$

Right Riemann Sum: $\frac{669}{70}$

Left Riemann Sum: $\frac{669}{140}$

Right Riemann Sum: $\frac{1023}{70}$

Left Riemann Sum: $\frac{1023}{70}$

Right Riemann Sum: $\frac{669}{70}$