When you ask "What number is halfway between 45 and 174?" 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=174.
To find the number halfway between 45 and 174, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 45 and 174 into our formula, we get:
(45 + 174)/2 = 109.5
Thus, the number halfway between 45 and 174 is 109.5.
To check that our answer is correct, we subtract 45 from 109.5 and subtract 109.5 from 174 and compare the two numbers:
109.5 - 45 = 64.5
174 - 109.5 = 64.5
As you can see, the halfway number is 64.5 higher than 45 and 64.5 lower than 174. Therefore, our halfway between answer of 109.5 above is correct.
Halfway Between
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Halfway Between 45 and 175
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