Halfway Between 55 and 690

When you ask "What number is halfway between 55 and 690?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=55 and Y=690.

Halfway Between Line

To find the number halfway between 55 and 690, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 55 and 690 into our formula, we get:

(55 + 690)/2 = 372.5

Thus, the number halfway between 55 and 690 is 372.5.

To check that our answer is correct, we subtract 55 from 372.5 and subtract 372.5 from 690 and compare the two numbers:

372.5 - 55 = 317.5
690 - 372.5 = 317.5

As you can see, the halfway number is 317.5 higher than 55 and 317.5 lower than 690. Therefore, our halfway between answer of 372.5 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 55 and 691
Here is our next Halfway Between calculation.