Halfway Between 4 and 77

When you ask "What number is halfway between 4 and 77?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=4 and Y=77.

Halfway Between Line

To find the number halfway between 4 and 77, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 4 and 77 into our formula, we get:

(4 + 77)/2 = 40.5

Thus, the number halfway between 4 and 77 is 40.5.

To check that our answer is correct, we subtract 4 from 40.5 and subtract 40.5 from 77 and compare the two numbers:

40.5 - 4 = 36.5
77 - 40.5 = 36.5

As you can see, the halfway number is 36.5 higher than 4 and 36.5 lower than 77. Therefore, our halfway between answer of 40.5 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 4 and 78
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