When you ask "What number is halfway between 47 and 54?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=47 and Y=54.
To find the number halfway between 47 and 54, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 47 and 54 into our formula, we get:
(47 + 54)/2 = 50.5
Thus, the number halfway between 47 and 54 is 50.5.
To check that our answer is correct, we subtract 47 from 50.5 and subtract 50.5 from 54 and compare the two numbers:
50.5 - 47 = 3.5
54 - 50.5 = 3.5
As you can see, the halfway number is 3.5 higher than 47 and 3.5 lower than 54. Therefore, our halfway between answer of 50.5 above is correct.
Halfway Between
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Halfway Between 47 and 55
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