The number of boys in class 62 is 4 / 5 of the number of girls. The number of boys accounts for a fraction of the total number of the class, the number of girls accounts for a fraction of the total number of the class, and the number of girls is a fraction of the number of boys

The number of boys in class 62 is 4 / 5 of the number of girls. The number of boys accounts for a fraction of the total number of the class, the number of girls accounts for a fraction of the total number of the class, and the number of girls is a fraction of the number of boys

set up
If the number of female students is 1 and the number of male students is 4 / 5, the number of the whole class is 9 / 5
Number of boys = 4 / 5 * 9 / 5 = 4 / 9
Number of female students = 1 * 9 / 5 = 5 / 9
A: female students account for 4 / 9 of the class, while male students account for 5 / 9 of the class