If $$A = \frac{18 \div 9 \times 4}{15 \div 3 \times 5}$$ and $$B = \frac{18 \div 36 \times 3 + 5 \times 1 - 6}{18 \div 6 \times 20 - 3 \times 4 + 12}$$, then what is the value of $$(A + B)$$?

A

$$\frac{137}{600}$$

B

$$\frac{23}{100}$$

C

$$\frac{187}{600}$$

D

$$\frac{197}{600}$$