Halfway Between 1 and 109

When you ask "What number is halfway between 1 and 109?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=1 and Y=109.

Halfway Between Line

To find the number halfway between 1 and 109, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 1 and 109 into our formula, we get:

(1 + 109)/2 = 55

Thus, the number halfway between 1 and 109 is 55.

To check that our answer is correct, we subtract 1 from 55 and subtract 55 from 109 and compare the two numbers:

55 - 1 = 54
109 - 55 = 54

As you can see, the halfway number is 54 higher than 1 and 54 lower than 109. Therefore, our halfway between answer of 55 above is correct.

Halfway Between
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Halfway Between 1 and 110
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