When you ask "What number is halfway between 42 and 297?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=42 and Y=297.
To find the number halfway between 42 and 297, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 297 into our formula, we get:
(42 + 297)/2 = 169.5
Thus, the number halfway between 42 and 297 is 169.5.
To check that our answer is correct, we subtract 42 from 169.5 and subtract 169.5 from 297 and compare the two numbers:
169.5 - 42 = 127.5
297 - 169.5 = 127.5
As you can see, the halfway number is 127.5 higher than 42 and 127.5 lower than 297. Therefore, our halfway between answer of 169.5 above is correct.
Halfway Between
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Halfway Between 42 and 298
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