If Julian and two of his friends are going to share 1/4 of a pizza, then they will be sharing the pizza equally among three people. To find out how much each person will get, you need to divide the 1/4 of the pizza by 3, which gives:
1/4 ÷ 3 = 1/4 × 1/3 = 1/12
So each person will get 1/12 of the pizza.