1. If 3 students are absent from a class of 48,
a. what fraction of the class is absent?
b.what fraction of the class is present?
a. To find the fraction of the class that is absent, divide the number of students absent by the total number of students:
3/48
This can be simplified by dividing both the numerator and denominator by 3:
1/16
Therefore, 1/16 of the class is absent.
b. To find the fraction of the class that is present, subtract the number of students absent from the total number of students, and then divide by the total number of students:
(48-3)/48 = 45/48
This fraction cannot be simplified, so 45/48 of the class is present.