Halfway Between 15 and 397

When you ask "What number is halfway between 15 and 397?" 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=397.

Halfway Between Line

To find the number halfway between 15 and 397, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 15 and 397 into our formula, we get:

(15 + 397)/2 = 206

Thus, the number halfway between 15 and 397 is 206.

To check that our answer is correct, we subtract 15 from 206 and subtract 206 from 397 and compare the two numbers:

206 - 15 = 191
397 - 206 = 191

As you can see, the halfway number is 191 higher than 15 and 191 lower than 397. Therefore, our halfway between answer of 206 above is correct.

Halfway Between
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Halfway Between 15 and 398
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