Question

Each student in a cohort plays one of three sports: soccer, volleyball, or basketball.

•3/5 of the number of students play soccer

•1/4 of the number of students play volleyball

What fraction of the number of students play basketball?

Answer 1

3/20

Explanation:

First we need to find a common denominator, and since 4*5=20 then 20 is he common denominator.

convert the fractions to twentieths so

3/5*4/4

12/20

1/4*5/5

5/20

now add 12/20+5/20

17/20

that is how many students are doing sports

so subtract 20-17

you get 3/20 students play basketball since you can't simplify that