When you ask "What number is halfway between 47 and 111?" 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=111.
To find the number halfway between 47 and 111, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 47 and 111 into our formula, we get:
(47 + 111)/2 = 79
Thus, the number halfway between 47 and 111 is 79.
To check that our answer is correct, we subtract 47 from 79 and subtract 79 from 111 and compare the two numbers:
79 - 47 = 32
111 - 79 = 32
As you can see, the halfway number is 32 higher than 47 and 32 lower than 111. Therefore, our halfway between answer of 79 above is correct.
Halfway Between
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Halfway Between 47 and 112
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