Halfway Between 55 and 80

When you ask "What number is halfway between 55 and 80?" 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=80.

Halfway Between Line

To find the number halfway between 55 and 80, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 55 and 80 into our formula, we get:

(55 + 80)/2 = 67.5

Thus, the number halfway between 55 and 80 is 67.5.

To check that our answer is correct, we subtract 55 from 67.5 and subtract 67.5 from 80 and compare the two numbers:

67.5 - 55 = 12.5
80 - 67.5 = 12.5

As you can see, the halfway number is 12.5 higher than 55 and 12.5 lower than 80. Therefore, our halfway between answer of 67.5 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 55 and 81
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