Halfway Between 1 and 78

When you ask "What number is halfway between 1 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=1 and Y=78.

Halfway Between Line

To find the number halfway between 1 and 78, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 1 and 78 into our formula, we get:

(1 + 78)/2 = 39.5

Thus, the number halfway between 1 and 78 is 39.5.

To check that our answer is correct, we subtract 1 from 39.5 and subtract 39.5 from 78 and compare the two numbers:

39.5 - 1 = 38.5
78 - 39.5 = 38.5

As you can see, the halfway number is 38.5 higher than 1 and 38.5 lower than 78. Therefore, our halfway between answer of 39.5 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 1 and 79
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