Halfway Between 45 and 66

When you ask "What number is halfway between 45 and 66?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=45 and Y=66.

Halfway Between Line

To find the number halfway between 45 and 66, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 45 and 66 into our formula, we get:

(45 + 66)/2 = 55.5

Thus, the number halfway between 45 and 66 is 55.5.

To check that our answer is correct, we subtract 45 from 55.5 and subtract 55.5 from 66 and compare the two numbers:

55.5 - 45 = 10.5
66 - 55.5 = 10.5

As you can see, the halfway number is 10.5 higher than 45 and 10.5 lower than 66. Therefore, our halfway between answer of 55.5 above is correct.

Halfway Between
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Halfway Between 45 and 67
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