Halfway Between 10 and 15

When you ask "What number is halfway between 10 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=10 and Y=15.

Halfway Between Line

To find the number halfway between 10 and 15, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 10 and 15 into our formula, we get:

(10 + 15)/2 = 12.5

Thus, the number halfway between 10 and 15 is 12.5.

To check that our answer is correct, we subtract 10 from 12.5 and subtract 12.5 from 15 and compare the two numbers:

12.5 - 10 = 2.5
15 - 12.5 = 2.5

As you can see, the halfway number is 2.5 higher than 10 and 2.5 lower than 15. Therefore, our halfway between answer of 12.5 above is correct.

Halfway Between
Find halfway between two other numbers here!

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