Okay so you would do this:
1,440 sq feet
2/5 which you need to put in a decimal and it would turn out to be 0.4
You would need to divide.
0.4 / 1,440= 2.7
You would get 1.08 and that should be your answer.
You would get 2.7
You would simplify and multiply 0.4 to 2.7.