Halfway Between 45 and 78

When you ask "What number is halfway between 45 and 78?" 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=78.

Halfway Between Line

To find the number halfway between 45 and 78, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 45 and 78 into our formula, we get:

(45 + 78)/2 = 61.5

Thus, the number halfway between 45 and 78 is 61.5.

To check that our answer is correct, we subtract 45 from 61.5 and subtract 61.5 from 78 and compare the two numbers:

61.5 - 45 = 16.5
78 - 61.5 = 16.5

As you can see, the halfway number is 16.5 higher than 45 and 16.5 lower than 78. Therefore, our halfway between answer of 61.5 above is correct.

Halfway Between
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Halfway Between 45 and 79
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