1/3+4-3+1/2

To solve this expression, we need to follow the order of operations (PEMDAS).

1/3 + 4 - 3 + 1/2
= 1/3 + 4 - 3 + 0.5 (simplify 1/2 to 0.5)
= 0.333 + 4 - 3 + 0.5 (convert 1/3 to decimal)
= 0.333 + 4 - 3 + 0.5
= 4.833

Therefore, 1/3 + 4 - 3 + 1/2 = 4.833.