When you ask "What number is halfway between 45 and 214?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=45 and Y=214.
To find the number halfway between 45 and 214, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 45 and 214 into our formula, we get:
(45 + 214)/2 = 129.5
Thus, the number halfway between 45 and 214 is 129.5.
To check that our answer is correct, we subtract 45 from 129.5 and subtract 129.5 from 214 and compare the two numbers:
129.5 - 45 = 84.5
214 - 129.5 = 84.5
As you can see, the halfway number is 84.5 higher than 45 and 84.5 lower than 214. Therefore, our halfway between answer of 129.5 above is correct.
Halfway Between
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Halfway Between 45 and 215
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