Pabitra had $$19\frac{2}{7}$$l of petrol in the fuel tank of his vehicle at the start of a journey. During the journey, $$13\frac{1}{2}$$l of petrol was consumed. What fraction of the initial petrol was left in the fuel tank after the journey?

A

$$\frac{7}{10}$$

B

$$\frac{3}{5}$$

C

$$\frac{3}{10}$$

D

$$\frac{11}{40}$$