12
Halfway between 8 and 9
11.5 is halfway between 8 and 15
What number is halfway between 8 & 9
The halfway number is (15 + 129) /2 = 144/2 = 72
15
-5
It is 15
Halfway between 2/9 and 5/9 is 3.5/9, more correctly expressed as 7/18.
Halfway between 15 and 30 is the average of the two numbers. To find the average, you add the two numbers together and then divide by 2. In this case, (15 + 30) / 2 = 45 / 2 = 22.5. Therefore, 22.5 is halfway between 15 and 30.
11.5
15