Question

Mark used a number line to model dividing 2
3
by 3. He divided the number line from 0 to 1 in 3 equal sections, and then divided each of those sections into 2 equal parts. Mark says 2
3
÷ 3 is 1
3
Is his answer correct? Explain why or why not.

Answer 1

Answer:

No, he is incorrect. Using a number line to model thirds means that each space that is 1/3 should be divided into 3 parts, not 2 parts. 6 parts divided into 3 groups gives 2 parts out of 9 parts total, so the answer is 2/9.

Step-by-step explanation:

Sample response