Halfway Between 21 and 477

When you ask "What number is halfway between 21 and 477?" 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=477.

Halfway Between Line

To find the number halfway between 21 and 477, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 477 into our formula, we get:

(21 + 477)/2 = 249

Thus, the number halfway between 21 and 477 is 249.

To check that our answer is correct, we subtract 21 from 249 and subtract 249 from 477 and compare the two numbers:

249 - 21 = 228
477 - 249 = 228

As you can see, the halfway number is 228 higher than 21 and 228 lower than 477. Therefore, our halfway between answer of 249 above is correct.

Halfway Between
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Halfway Between 21 and 478
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