Halfway Between 12 and 31

When you ask "What number is halfway between 12 and 31?" 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=31.

Halfway Between Line

To find the number halfway between 12 and 31, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 12 and 31 into our formula, we get:

(12 + 31)/2 = 21.5

Thus, the number halfway between 12 and 31 is 21.5.

To check that our answer is correct, we subtract 12 from 21.5 and subtract 21.5 from 31 and compare the two numbers:

21.5 - 12 = 9.5
31 - 21.5 = 9.5

As you can see, the halfway number is 9.5 higher than 12 and 9.5 lower than 31. Therefore, our halfway between answer of 21.5 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 12 and 32
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