Final answer:
The ratio of male to sixth-grade students is 7:16, derived from simplifying the original ratio of 28 males to 64 total students by dividing both numbers by their greatest common divisor.
Step-by-step explanation:
To find the ratio of male to sixth grade students, you need to know the total number of students and the number of male students. In this case, you mentioned there are 28 males and 36 females in the sixth grade, making a total of 28 + 36 = 64 students.
The ratio of males to total students is therefore 28 males to 64 students. To simplify the ratio, you can divide both terms by the greatest common divisor of 28 and 64, which is 4. Therefore, 28 ÷ 4 = 7 and 64 ÷ 4 = 16, giving you a simplified ratio of 7:16.