An oil company fills 1 over 12 of a tank in 1 over 3 hour. At this rate, which expression can be used to determine how long it will take for the tank to fill completely?
(1 point)
Group of answer choices
1 over 12⋅ 3 hours
1 over 3⋅ 12 hours
1 over 3⋅ 1 over 12 hour
3 ⋅ 12 hours