What is the fraction of students who failed in mathematics exam, if the total number of students who appeared in the exam is 65 and the number of students who passed is 57?
865
Total number of students who appeared in the exam = 65
Number of students who passed = 57
⇒ Number of students who failed in the exam = 65 - 57 = 8
∴ Fraction of students who failed = 865