Halfway Between 78 and 397

When you ask "What number is halfway between 78 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=78 and Y=397.

Halfway Between Line

To find the number halfway between 78 and 397, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 78 and 397 into our formula, we get:

(78 + 397)/2 = 237.5

Thus, the number halfway between 78 and 397 is 237.5.

To check that our answer is correct, we subtract 78 from 237.5 and subtract 237.5 from 397 and compare the two numbers:

237.5 - 78 = 159.5
397 - 237.5 = 159.5

As you can see, the halfway number is 159.5 higher than 78 and 159.5 lower than 397. Therefore, our halfway between answer of 237.5 above is correct.

Halfway Between
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Halfway Between 78 and 398
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