The ratio of boys to girls in a class is 4:5 what fraction of teh class are boys

4/9

Step-by-step explanation:

If you add the ratios, it gives you the total, so 4 + 5 = 9. 9 total students. Since boys is represented by 4, then 4/9 is the fraction for boys and 5/9 is the fraction for girls.

4/9

Step-by-step explanation:

For every 4 boys, there are 5 girls.

4 + 5 = 9 students in total

Therefore, 4/9 of the students are boys.