The number of students in class 52 is five sixths of that in class 51. How many times is the number of students in class 51? There are two classes How many parts of the total number of the two classes

The number of students in class 52 is five sixths of that in class 51. How many times is the number of students in class 51? There are two classes How many parts of the total number of the two classes

1) The number of students in class 51 is 6 / 5 times that of class 52: 1 / (5 / 6)
2) The number of students in class 52 accounts for 5 / 6 / (1 + 5 / 6) = 5 / 11
The number of students in class 51 accounts for the total number of the two classes: 1 / (1 + 5 / 6) = 6 / 11