He needs 2.5 pounds of ground turkey.

Given,

In the question:

Ben wants to triple his spaghetti sauce recipe, which calls for 2 pound 8 ounces of ground turkey.

To find the how much pounds ground turkey will he need?

Now, According to the question:

Let’s know:

How do you convert ounces to pounds formula?

In other words, dividing a number of ounces by 16 will get you an answer in pounds. In our example, dividing the baby’s weight in ounces by 16 gets us 160/16 = 10 lbs.
We know that there are 16 ounces in 1 pound,

It is meaning that 8 ounces is half a pound.

Adding this to the 2 pound gives 2 + 1/2 = 2.5 pounds of ground turkey.

Hence, 2.5 pounds of ground turkey.

Learn more about Ounces at: