Halfway Between 40 and 123

When you ask "What number is halfway between 40 and 123?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=40 and Y=123.

Halfway Between Line

To find the number halfway between 40 and 123, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 40 and 123 into our formula, we get:

(40 + 123)/2 = 81.5

Thus, the number halfway between 40 and 123 is 81.5.

To check that our answer is correct, we subtract 40 from 81.5 and subtract 81.5 from 123 and compare the two numbers:

81.5 - 40 = 41.5
123 - 81.5 = 41.5

As you can see, the halfway number is 41.5 higher than 40 and 41.5 lower than 123. Therefore, our halfway between answer of 81.5 above is correct.

Halfway Between
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Halfway Between 40 and 124
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