Halfway Between 78 and 401

When you ask "What number is halfway between 78 and 401?" 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=401.

Halfway Between Line

To find the number halfway between 78 and 401, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 78 and 401 into our formula, we get:

(78 + 401)/2 = 239.5

Thus, the number halfway between 78 and 401 is 239.5.

To check that our answer is correct, we subtract 78 from 239.5 and subtract 239.5 from 401 and compare the two numbers:

239.5 - 78 = 161.5
401 - 239.5 = 161.5

As you can see, the halfway number is 161.5 higher than 78 and 161.5 lower than 401. Therefore, our halfway between answer of 239.5 above is correct.

Halfway Between
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Halfway Between 78 and 402
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