Question

Carlos has used 40 cell phone minutes each day for one full week. His cell phone plan allows for a total of 320 minutes per week. Which fraction represents the ratio of cell phone minutes remaining to total minutes?

Answer 1

40*7= 280
You would put 280 over 320
280
-----
320
Take off the zeros since they both have one.
28
---
32
28/32 is your answer. 
If you need a simplified version your answer would be 7/8

Answer 2

The answer is 1 / 8, I'm pretty sure.