Sean has 4 cookies. He wants to divide the cookies among his friends so that each friend gets 2/3 of a cookie. How many friends can he give 2/3 of a cookie?

6 people

Explanation:

6

4 cookies 2/3 2/3 2/3 2/3

so those cookies have 1/3 left

1/3 1/3 1/3 1/3=4/3 left so

4

Explanation:

multiply the whole number by the numerator and make that number the numerator the old numerator becomes the new denominator