Chapter B, Problem 41E

To determine

(a)

To calculate:

The value of $\frac{\frac{5+7.1}{3}+\frac{2-7.1}{5}}{7}$ and the command used for it.

To determine

(b)

To calculate:

The value of $\frac{\frac{5+7.2}{3}+\frac{2-7.2}{5}}{7}$.

To determine

(c)

To calculate:

The value of $\frac{\frac{5+9.3}{3}+\frac{2-4.9}{5}}{7}$.