$$\left( {\frac{1}{{1.4}} + \frac{1}{{4.7}} + \frac{1}{{7.10}} + \frac{1}{{10.13}} + \frac{1}{{13.16}}} \right)$$is equal to = ?

$$\left( {\frac{1}{{1.4}} + \frac{1}{{4.7}} + \frac{1}{{7.10}} + \frac

1.	$$\left( {\frac{1}{{1.4}} + \frac{1}{{4.7}} + \frac{1}{{7.10}} + \frac{1}{{10.13}} + \frac{1}{{13.16}}} \right)$$is equal to = ?
A.	$\frac{1}{3}$$
B.	$\frac{5}{{16}}$$
C.	$\frac{3}{8}$$
D.	$\frac{{41}}{{7280}}$$
Answer» C. $\frac{3}{8}$$