When you ask "What number is halfway between 48 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=48 and Y=397.
To find the number halfway between 48 and 397, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 48 and 397 into our formula, we get:
(48 + 397)/2 = 222.5
Thus, the number halfway between 48 and 397 is 222.5.
To check that our answer is correct, we subtract 48 from 222.5 and subtract 222.5 from 397 and compare the two numbers:
222.5 - 48 = 174.5
397 - 222.5 = 174.5
As you can see, the halfway number is 174.5 higher than 48 and 174.5 lower than 397. Therefore, our halfway between answer of 222.5 above is correct.
Halfway Between
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Halfway Between 48 and 398
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