Of the fifth grade students 15/20 went to the book fair. of the students who went to the book fair,12/16 bought at least one book. what fraction of fifth grade students bought at least one book

Step-by-step explanation:

Let total number of students

Students went to the book fair:

Students went to book fair

Students who bought book:

Hence of total students bought at least one book.

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5