When you ask "What number is halfway between 1 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=1 and Y=120.
To find the number halfway between 1 and 120, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 1 and 120 into our formula, we get:
(1 + 120)/2 = 60.5
Thus, the number halfway between 1 and 120 is 60.5.
To check that our answer is correct, we subtract 1 from 60.5 and subtract 60.5 from 120 and compare the two numbers:
60.5 - 1 = 59.5
120 - 60.5 = 59.5
As you can see, the halfway number is 59.5 higher than 1 and 59.5 lower than 120. Therefore, our halfway between answer of 60.5 above is correct.
Halfway Between
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Halfway Between 1 and 121
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