marri bought one third pound of licorice, one third pound of candy worms, and two-fifths of jawbreakers. How many more pounds of licorice than candy worms did she buy?

Marri bought one third pound of licorice and one third pound of candy worms, so she bought 1/3 - 1/3 = 0 pounds more of licorice than candy worms.

Marri also bought 2/5 of jawbreakers, so she bought a total of 1/3 + 1/3 + 2/5 = <<1/3+1/3+2/5=23/15>>23/15 pounds.
Marri bought 0 pounds more of licorice than candy worms, or 0 * 15 = 0 pounds more. Answer: \boxed{0}.

To find out how many more pounds of licorice Marri bought than candy worms, we need to compare the amount of licorice to the amount of candy worms.

First, let's find the total amount of licorice and candy worms combined.

Licorice: 1/3 pound
Candy worms: 1/3 pound

To compare these fractions, we can find the common denominator, which is 3.

Licorice: 1/3 pound
Candy worms: 1/3 pound

Now let's find out the total amount of jawbreakers that Marri bought.

Jawbreakers: 2/5

To compare the jawbreakers to the licorice and candy worms, we also need to find a common denominator. The common denominator for 3 and 5 is 15.

Licorice: 1/3 pound (equal to 5/15)
Candy worms: 1/3 pound (also equal to 5/15)
Jawbreakers: 2/5 (equal to 6/15)

Now we can compare the licorice and candy worms.

Licorice: 5/15 pound
Candy worms: 5/15 pound

To find the difference, we subtract the candy worms from the licorice:

5/15 - 5/15 = 0/15

Therefore, Marri bought the same amount of licorice and candy worms, there is no difference in pounds between them.

To find out how many more pounds of licorice Marri bought than candy worms, we need to compare the weights of the two items. Let's begin by calculating the weight of each item.

First, Marri bought one-third pound of licorice.

Next, Marri also bought one-third pound of candy worms.

Finally, Marri bought two-fifths of jawbreakers. To determine the weight of the jawbreakers, we need to know the total weight. Let's assume the total weight is 1 pound for simplicity.

From the total weight of 1 pound, Marri bought two-fifths of jawbreakers, which is equivalent to (2/5) * 1 = 2/5 pound.

Now, let's calculate the difference between the weight of the licorice and the candy worms:

Licorice weight = 1/3 pound
Candy worms weight = 1/3 pound

To find the difference, we subtract the weight of the candy worms from the weight of the licorice:

Licorice weight - Candy worms weight = (1/3) - (1/3) = 0 pounds

Therefore, there is no difference in weight between the licorice and the candy worms. Marri bought an equal amount of both.