When you ask "What number is halfway between 5 and 140?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=5 and Y=140.
To find the number halfway between 5 and 140, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 5 and 140 into our formula, we get:
(5 + 140)/2 = 72.5
Thus, the number halfway between 5 and 140 is 72.5.
To check that our answer is correct, we subtract 5 from 72.5 and subtract 72.5 from 140 and compare the two numbers:
72.5 - 5 = 67.5
140 - 72.5 = 67.5
As you can see, the halfway number is 67.5 higher than 5 and 67.5 lower than 140. Therefore, our halfway between answer of 72.5 above is correct.
Halfway Between
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Halfway Between 5 and 141
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