When you ask "What number is halfway between 74 and 397?" 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=397.
To find the number halfway between 74 and 397, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 74 and 397 into our formula, we get:
(74 + 397)/2 = 235.5
Thus, the number halfway between 74 and 397 is 235.5.
To check that our answer is correct, we subtract 74 from 235.5 and subtract 235.5 from 397 and compare the two numbers:
235.5 - 74 = 161.5
397 - 235.5 = 161.5
As you can see, the halfway number is 161.5 higher than 74 and 161.5 lower than 397. Therefore, our halfway between answer of 235.5 above is correct.
Halfway Between
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Halfway Between 74 and 398
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