When you ask "What number is halfway between 47 and 120?" 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=120.
To find the number halfway between 47 and 120, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 47 and 120 into our formula, we get:
(47 + 120)/2 = 83.5
Thus, the number halfway between 47 and 120 is 83.5.
To check that our answer is correct, we subtract 47 from 83.5 and subtract 83.5 from 120 and compare the two numbers:
83.5 - 47 = 36.5
120 - 83.5 = 36.5
As you can see, the halfway number is 36.5 higher than 47 and 36.5 lower than 120. Therefore, our halfway between answer of 83.5 above is correct.
Halfway Between
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Halfway Between 47 and 121
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