When you ask "What number is halfway between 74 and 855?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=74 and Y=855.
To find the number halfway between 74 and 855, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 74 and 855 into our formula, we get:
(74 + 855)/2 = 464.5
Thus, the number halfway between 74 and 855 is 464.5.
To check that our answer is correct, we subtract 74 from 464.5 and subtract 464.5 from 855 and compare the two numbers:
464.5 - 74 = 390.5
855 - 464.5 = 390.5
As you can see, the halfway number is 390.5 higher than 74 and 390.5 lower than 855. Therefore, our halfway between answer of 464.5 above is correct.
Halfway Between
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Halfway Between 74 and 856
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