
When you ask "What number is halfway between 7 and 45?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=7 and Y=45.

To find the number halfway between 7 and 45, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 45 into our formula, we get:
(7 + 45)/2 = 26
Thus, the number halfway between 7 and 45 is 26.
To check that our answer is correct, we subtract 7 from 26 and subtract 26 from 45 and compare the two numbers:
26 - 7 = 19
45 - 26 = 19
As you can see, the halfway number is 19 higher than 7 and 19 lower than 45. Therefore, our halfway between answer of 26 above is correct.
Halfway Between
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Halfway Between 7 and 46
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