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Divide the number of girls by the total number of children (boys + girls).

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Q: In a class there are 18 boys and 7 girls What fraction of the class are girls?
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A biology class has 12 boys and 18 girls. What fraction of the class are boys?

Boys: 12/30 = 2/5 Girls: 18/30 = 3/5


In a class there are 18 girls and 12 boys what percent of the class is boys?

60% of the class


What is the fraction of 6 girls and 18 boys what is the fraction of girls in the simplest form?

It is 1/4.


The ratio of the number of girls to the number of boys in a class is 3 to 2. there are 18 girls in class .?

There are 12 boys.


There are 30 students in the class three fifths of them are boys?

If there were 30 students in the class, it would mean that 2/5 are girls. Girls = 12. Boys = 18


A class has 12 boys and 18 girls. What percent of the students in the class are girls?

60%


There are three times more girls in the class than boys. There are 24 students in the class. How many girls are in the class?

There are 18 girls and 6 boys in the class of 24 students


Did you mean there are 18 students in mrs Chan's class eight of these students are boys which class has a smaller fraction of boys than in mrs Chan's class?

there are 18 students in mrs Chan's class eight of these students are boys which class has a smaller fraction of boys than in mrs Chan's class?


What percentage of a class are boys if there are 10 girls and 18 boys?

18 boys in a class of 10+18 = 28 represents 100*18/28 = 64.29% okok thank you


What is the total number of boys and girls if the ratio of boys and girls is 3 to 2 and there are 30 students in the class?

18 boys and 12 girls


If you have 48 students in your class and there were 12 more girls how many boys and girls are ther?

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If there is 10 boys and 18 girls in a class what is the ratio of the number of boys to the number of girls?

10:18 or 5:9 (simplified)