Vicky bought 31/2pounnds of oranges
To convert the given fraction into pounds, you need to know how many pounds are in one whole orange. Let's assume that one orange weighs 1 pound.
To find the weight of 31/2 (3 1/2) pounds of oranges, you need to multiply the weight of one orange (1 pound) by the number of oranges.
1 orange * 3 1/2 = 3 1/2 pounds
Therefore, Vicky bought 3 1/2 pounds of oranges.