The number of boys in Grade 6 is 80% of the number of girls, so how many% of the number of girls is the number of boys

The number of boys in Grade 6 is 80% of the number of girls, so how many% of the number of girls is the number of boys

Take the number of girls as 1, the number of boys = 1 * 0.8
The number of female students is equivalent to a fraction of the number of male students, 1 / (1 * 0.8) = 5 / 4