in a classroom there are 6 3rd grade students and 10 6th grade students. express the ratio of 3rd graders to the entire number of students as a fraction.

The number of 3rd graders is 6, and the number of 6th graders is 10. The total number of students in the classroom is 6 + 10 = 16.

Therefore, the ratio of 3rd graders to the entire number of students is 6/16, which simplifies to 3/8. Thus, the fraction is 3/8.