What is the sum of $$\frac{1}{3}, \frac{4}{3}and \frac{3}{4} ?$$​​

Correct option is B

​Given:

​$$\frac{1}{3}, \frac{4}{3}, \frac{3}{4}$$​​​​

Solution:
LCM of $$3, 3, 4 = 12:$$ 

Now, 

​$$\frac{1}{3} = \frac{4}{12}, \quad \frac{4}{3} = \frac{16}{12}, \quad \frac{3}{4} = \frac{9}{12}$$ 

Then 

$$\text{Sum} = \frac{4 + 16 + 9}{12} = \frac{29}{12}$$​​