When you ask "What number is halfway between 49 and 108?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=49 and Y=108.
To find the number halfway between 49 and 108, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 108 into our formula, we get:
(49 + 108)/2 = 78.5
Thus, the number halfway between 49 and 108 is 78.5.
To check that our answer is correct, we subtract 49 from 78.5 and subtract 78.5 from 108 and compare the two numbers:
78.5 - 49 = 29.5
108 - 78.5 = 29.5
As you can see, the halfway number is 29.5 higher than 49 and 29.5 lower than 108. Therefore, our halfway between answer of 78.5 above is correct.
Halfway Between
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Halfway Between 49 and 109
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