Halfway Between 15 and 55

When you ask "What number is halfway between 15 and 55?" 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=55.

Halfway Between Line

To find the number halfway between 15 and 55, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 15 and 55 into our formula, we get:

(15 + 55)/2 = 35

Thus, the number halfway between 15 and 55 is 35.

To check that our answer is correct, we subtract 15 from 35 and subtract 35 from 55 and compare the two numbers:

35 - 15 = 20
55 - 35 = 20

As you can see, the halfway number is 20 higher than 15 and 20 lower than 55. Therefore, our halfway between answer of 35 above is correct.

Halfway Between
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Halfway Between 15 and 56
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