40% of the 25 students in the class are boys. Write 40% as a fraction? Then find the ratio of girls to boys

40% = 40/100 = 2/5

2/5 * 25 = 10

10 girls to 15 boys

28 students is 40% of how many total students?

To write 40% as a fraction, we need to understand that percent means "per hundred." So, 40% is the same as 40 per hundred, which can also be written as 40/100. However, we can simplify this fraction by dividing the numerator and denominator by their greatest common divisor (GCD). In this case, the GCD of 40 and 100 is 20.

Dividing both the numerator and denominator by 20, we get:
40/100 = (40 ÷ 20) / (100 ÷ 20) = 2/5

So, 40% can be written as the fraction 2/5.

To find the ratio of girls to boys, we need to know the number of girls in the class. Since we are only given the information about boys, we will assume that the remaining students are girls.

Let's calculate the number of boys:
40% of 25 students = (40/100) x 25 = 10 boys

Since 40% of the students are boys (10 out of 25), the remaining students must be girls, which is 25 - 10 = 15 girls.

Therefore, the ratio of girls to boys is 15:10 or simplified as 3:2.