When you ask "What number is halfway between 42 and 56?" 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=56.
To find the number halfway between 42 and 56, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 56 into our formula, we get:
(42 + 56)/2 = 49
Thus, the number halfway between 42 and 56 is 49.
To check that our answer is correct, we subtract 42 from 49 and subtract 49 from 56 and compare the two numbers:
49 - 42 = 7
56 - 49 = 7
As you can see, the halfway number is 7 higher than 42 and 7 lower than 56. Therefore, our halfway between answer of 49 above is correct.
Halfway Between
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Halfway Between 42 and 57
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