Halfway Between 12 and 15

When you ask "What number is halfway between 12 and 15?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=12 and Y=15.

Halfway Between Line

To find the number halfway between 12 and 15, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 12 and 15 into our formula, we get:

(12 + 15)/2 = 13.5

Thus, the number halfway between 12 and 15 is 13.5.

To check that our answer is correct, we subtract 12 from 13.5 and subtract 13.5 from 15 and compare the two numbers:

13.5 - 12 = 1.5
15 - 13.5 = 1.5

As you can see, the halfway number is 1.5 higher than 12 and 1.5 lower than 15. Therefore, our halfway between answer of 13.5 above is correct.

Halfway Between
Find halfway between two other numbers here!

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