Thank you for your clarity! It's kind of like taking the 3rd person out of a sentence to determine whether to use "I" or "me," which I do with regularity!
As your response posted, I was contemplating "1/2 of each bag of popcorn" and "3/2 bags of popcorn" and will now apply your insights, ending the Nemeth bubble before "of popcorn" in both phrases.
Thanks again, Trumbull