Posted by Mike on .
If the rise of a roof is 8 feet and the run is 2 feet 8 inches, what is the pitch of the roof in lowest terms when written as a FRACTION?
8 feet = 96 inches
2 feet 8 inches = 24+8= 32
so is it 32/96
which equals 1/3
 Math  DrBob222,

Math 
Guido,
Rise is always divided by the run.
Rise/Run is what you must use.
However, the rise is 96 inches in this case and the run is 32 inches.
So, our fraction should be 96/32 = 3.
However, 3 is a whole number not a fraction.
Is there a typo here?
Shouldn't the rise be 32 and the run 96? Go back and check your question.
If the rise is 32 and the run 96, then the answer is 1/3.
But keep in mind that the correct way to express the fraction in terms of rise and run is rise/run and not run/rise.
Write back.