Halfway Between 15 and 109

When you ask "What number is halfway between 15 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=15 and Y=109.

Halfway Between Line

To find the number halfway between 15 and 109, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 15 and 109 into our formula, we get:

(15 + 109)/2 = 62

Thus, the number halfway between 15 and 109 is 62.

To check that our answer is correct, we subtract 15 from 62 and subtract 62 from 109 and compare the two numbers:

62 - 15 = 47
109 - 62 = 47

As you can see, the halfway number is 47 higher than 15 and 47 lower than 109. Therefore, our halfway between answer of 62 above is correct.

Halfway Between
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Halfway Between 15 and 110
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