She is incorrect because a fraction of a fraction is never going to lead to a whole number. For example, 1/3 times 1/3, you will get 1/6. The fraction will always get smaller, not bigger.
she is incorrect because when you multiply a fraction with a fraction it is impossible to get a whole number, for example if you multiply 3/2 with 1/2 you get 3/4 which is not a whole number.
