Charlie has a sandwich that was cut into three pieces. Bruce had a sandwich that was cut into two pieces. How could they cut their sandwiches to make both have the same size pieces? Show a model.
To make both Charlie and Bruce have sandwiches with the same size pieces, they need to divide their sandwiches into equal parts.
Charlie's sandwich is cut into three pieces, while Bruce's sandwich is cut into two pieces.
To achieve equal size pieces, Charlie can cut one of his pieces in half, resulting in two halves.
Now, both Charlie and Bruce have sandwiches that are cut into two pieces each, with equal size pieces.
Here is a model to represent this:
Charlie's sandwich: |/|/|
Bruce's sandwich: |/|
In the model you did not show Charlie's sandwich cut into three pieces and you did not show Bruce's sandwich cut into two pieces.
I apologize for the confusion. Here is an updated model that shows Charlie's sandwich cut into three pieces and Bruce's sandwich cut into two pieces:
Charlie's sandwich: |/|/|
Bruce's sandwich: |/|
To make their sandwiches have the same size pieces, Charlie can cut one of his pieces in half, resulting in two halves:
Charlie's sandwich: |/|/|/|
Bruce's sandwich: |/|