When you ask "What number is halfway between 5 and 19?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=5 and Y=19.
To find the number halfway between 5 and 19, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 5 and 19 into our formula, we get:
(5 + 19)/2 = 12
Thus, the number halfway between 5 and 19 is 12.
To check that our answer is correct, we deduct 5 from 12 and deduct 12 from 19 and compare the two numbers:
12 - 5 = 19 - 12 = same = 7
As you can see, the halfway number is 7 higher than 5 and 7 lower than 19. Therefore, our halfway between answer of 12 above is correct.
Find halfway between two other numbers here!
Halfway Between 5 and 20
Here is our next Halfway Between calculation.