Question

Doug earns $10.50 per hour working at a restaurant. On

Friday he spent 1 & 3/4 hours cleaning, 2 & 1/3 hours doing
paperwork, and 1 & 5/12 hours serving customers. What were
Doug’s earnings?

Answer 1

First, add all of the working hours.
1
`(3)/(4)` + 2
`(1)/(3)` + 1
`(5)/(12)`

Since the denominators are different, make them all the same.
1
`(9)/(12)` + 2
`(4)/(12)` + 1
`(5)/(12)`

Add everything together.
4
`(1)/(12)` + 1
`(5)/(12)` = 5
`(6)/(12)`

Then, simplify.
5
`(1)/(2)` or 5.5

Multiply the time by the salary.
5.5*10.5= Doug earned $57.75