Halfway Between 15 and 315

When you ask "What number is halfway between 15 and 315?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=15 and Y=315.

Halfway Between Line

To find the number halfway between 15 and 315, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 15 and 315 into our formula, we get:

(15 + 315)/2 = 165

Thus, the number halfway between 15 and 315 is 165.

To check that our answer is correct, we subtract 15 from 165 and subtract 165 from 315 and compare the two numbers:

165 - 15 = 150
315 - 165 = 150

As you can see, the halfway number is 150 higher than 15 and 150 lower than 315. Therefore, our halfway between answer of 165 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 15 and 316
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