word problem grade6

Question

Connor bought a large pizza and cut into eighteen pieces

Mack ate two-ninths of the pizza, Jessica ate a third of it, and Connor ate what was left. How many pieces of pizza did Connor eat?

Answer 1

Mack ate 2/9. 2/9 = 4/18 = 4 pieces of pizza

Jessica at 1/3. 1/3 * 18 = 6 pieces of pizza.

Connor ate what was left. 18 - 4 - 6 = 8

Answer 2

2 / 9 = 4 / 18

1 / 3 = 6 / 18

10 / 18 were eaten before Connor got to it.

How much was left for him?