question_answer

Find the value of \[\left[ -\frac{1}{4}-\left( -\frac{1}{6} \right) \right]+\left[ \frac{1}{3}+\left( -\frac{1}{2} \right) \right]\].

A)  \[\frac{1}{2}\]                       

B)  \[\frac{-1}{4}\]        

C)       \[\frac{1}{3}\]                       

D)       \[\frac{-1}{6}\]