Halfway Between 4 and 421

When you ask "What number is halfway between 4 and 421?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=4 and Y=421.

Halfway Between Line

To find the number halfway between 4 and 421, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 4 and 421 into our formula, we get:

(4 + 421)/2 = 212.5

Thus, the number halfway between 4 and 421 is 212.5.

To check that our answer is correct, we subtract 4 from 212.5 and subtract 212.5 from 421 and compare the two numbers:

212.5 - 4 = 208.5
421 - 212.5 = 208.5

As you can see, the halfway number is 208.5 higher than 4 and 208.5 lower than 421. Therefore, our halfway between answer of 212.5 above is correct.

Halfway Between
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Halfway Between 4 and 422
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