Halfway Between 17 and 513

When you ask "What number is halfway between 17 and 513?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=17 and Y=513.

Halfway Between Line

To find the number halfway between 17 and 513, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 17 and 513 into our formula, we get:

(17 + 513)/2 = 265

Thus, the number halfway between 17 and 513 is 265.

To check that our answer is correct, we subtract 17 from 265 and subtract 265 from 513 and compare the two numbers:

265 - 17 = 248
513 - 265 = 248

As you can see, the halfway number is 248 higher than 17 and 248 lower than 513. Therefore, our halfway between answer of 265 above is correct.

Halfway Between
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