Halfway Between 9 and 45

When you ask "What number is halfway between 9 and 45?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=9 and Y=45.

Halfway Between Line

To find the number halfway between 9 and 45, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 9 and 45 into our formula, we get:

(9 + 45)/2 = 27

Thus, the number halfway between 9 and 45 is 27.

To check that our answer is correct, we subtract 9 from 27 and subtract 27 from 45 and compare the two numbers:

27 - 9 = 18
45 - 27 = 18

As you can see, the halfway number is 18 higher than 9 and 18 lower than 45. Therefore, our halfway between answer of 27 above is correct.

Halfway Between
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Halfway Between 9 and 46
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