When you ask "What number is halfway between 18 and 77?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=18 and Y=77.
To find the number halfway between 18 and 77, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 18 and 77 into our formula, we get:
(18 + 77)/2 = 47.5
Thus, the number halfway between 18 and 77 is 47.5.
To check that our answer is correct, we subtract 18 from 47.5 and subtract 47.5 from 77 and compare the two numbers:
47.5 - 18 = 29.5
77 - 47.5 = 29.5
As you can see, the halfway number is 29.5 higher than 18 and 29.5 lower than 77. Therefore, our halfway between answer of 47.5 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 18 and 78
Here is our next Halfway Between calculation.
Copyright | Privacy Policy | Disclaimer | Contact