Question

in a middle school glee club, 2/5 of the singers are sopranos, 1/3 are altos, and the rest are tenors. If there are 90 students in the glee club how many of them are tenors?

Answer 1

To find the fraction of the glee club that are tenors, we first need to add
`(2)/(5)` and
`(1)/(3)` before subtracting the sum from 1.


`(2)/(5)+ (1)/(3)= (6+5)/(15) = (11)/(15)`

`1- (11)/(15) = (4)/(15)`

Thus, we know that
`(4)/(15)` of the middle school glee club students are tenors. We simply get the actual number of tenors by multiplying this fraction to the total number of students in the glee club.


`(4)/(15) *90=24`

ANSWER: 24 students in the glee club are tenors.