SOLUTION: In a a class of 42, 38 students were present on friday, what fraction of students were absent on Friday?, the correct answer written in the end of the book is 1/20, please explain.
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Question 966715: In a a class of 42, 38 students were present on friday, what fraction of students were absent on Friday?, the correct answer written in the end of the book is 1/20, please explain. Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website! 42 total
38 present on Friday
4 absent on Friday
The answer in the back of the book is incorrect.
No fraction of a class of 42 can have a denominator of 20 since 20 is not a factor of 42.