Question

a store is selling 61/2 ounce bags of flour. The recipe for cupcakes calls for 1/3 ounce of flour. How many whole cupcakes can u make using the whole bag of flour.

Answer 1

I must assume that you meant "6  1/2" and not "61 / 2."

If each cupcase requires 1/3 ounce of flour, then the total whole cupcakes that can be made using the entire 6 1/2 oz. bag is


6 1/2 oz                     13 oz      1 cupcake
----------------------- = ---------- * ---------------- = 39 cupcakes (answer)
 1/3 oz / cupcake         2             (1/3 oz)