9
9 - (-5) = 9 + 5 = 14.9 - (-5) = 9 + 5 = 14.
9 = 9/1, 5 = 5/1
1/9 / 9/5 =5/18 beacuase (1/9)*5/9=5/18
5/9 = 0.555555...
5/9 (or 5:9)
5/9 ÷ 5 = 1/9
9
1/5 of 9 = 9/5 = 1 and 4/5
-5
5 +9 = 9 + 5 is an example of arithmetic commutativity
1 4/5 = 9/5 9/5 * 5 = 9