Question

Last year, Sarah used 16 ½ gigabytes of data on her cell phone. How many gigabytes did Sarah use each month?

Answer 1

1
`(3)/(8)` gigabytes

Explanation:

We are provided the number she used in a year, to find the average number she used in a month, we need to divide the total by 12.

16 1/2= 33/2

`(33)/(2) /12`

Dividing is the same as multiplying by its reciprocal

`(33)/(2)` ×
`(1)/(12)`

=
`(11)/(8)`

We can then convert that back into a mixed number.

`(11)/(8)`=1
`(3)/(8)`

She used 1
`(3)/(8)` each month.