Question

Bill ate 2/3 of a pizza. Sam ate 1/3 of what was left. What part of the whole pizza did Sam eat?

Answer 1

0.3333333333333333....

Answer 2

1/3 of the pizza is left. 1/3 of the 1/3 was eaten

so

1/3 × 1/3 = 1/9

same ate 1/9 of the pizza