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.(1 point)

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To find the ratio of 3rd graders to the entire number of students, we need to add the number of 3rd graders and the number of 6th graders and then express the ratio of 3rd graders to the total number of students as a fraction.

The total number of students is 6 + 10 = <<6+10=16>>16.

Therefore, the ratio of 3rd graders to the entire number of students is 6/16.

We can simplify this fraction by dividing both the numerator and the denominator by their greatest common divisor, which is 2:
6/16 = (6 ÷ 2)/(16 ÷ 2) = 3/8.

So, the ratio of 3rd graders to the entire number of students is 3/8.