Solve the following:
 
(i) \(2\frac{3}{5} + 1\frac{2}{5} = \) i
 
(ii) \(6\frac{5}{8} - 3 \frac{2}{8} = \) iii
 
(iii) \(\frac{1}{5} + \frac{1}{10} =\) ii
 
(iv) \(\frac{1}{2} - \frac{1}{2} = \) i
 
[NOTE: With Simplification]