1/2,3/2 and 6/2 find the value

If your question mean:

1 / 2 + 3 / 2 + 6 / 2

then

1 / 2 + 3 / 2 + 6 / 2 = ( 1 + 3 + 6 ) / 2 = 10 / 2 = 5