Question

There are 30 students in the 4th grade math class. 18/30 are boys. What

fraction of the class is girls?
100 points
LE​

Answer 1

12/30 of the kids are girls

Explanation:

For this problem you have to substract the total number of kids from the boys; 30 - 18 (ignore /30) then you will get girls (12).

To double check you add the boys and girls together to get the whole class. (18 + 12 = 30)

Answer 2

12/30 = 2/ 5

Explanation:

So firstly, you'll need to subtract 18 from 30.

which gives you 12.

so basically the fractions of girls is 12/ 30

when you divide it to its lowest terms, it becomes 2/5.