Halfway Between 21 and 493

When you ask "What number is halfway between 21 and 493?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=21 and Y=493.

Halfway Between Line

To find the number halfway between 21 and 493, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 493 into our formula, we get:

(21 + 493)/2 = 257

Thus, the number halfway between 21 and 493 is 257.

To check that our answer is correct, we subtract 21 from 257 and subtract 257 from 493 and compare the two numbers:

257 - 21 = 236
493 - 257 = 236

As you can see, the halfway number is 236 higher than 21 and 236 lower than 493. Therefore, our halfway between answer of 257 above is correct.

Halfway Between
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Halfway Between 21 and 494
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