When you ask "What number is halfway between 42 and 53?" 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=53.
To find the number halfway between 42 and 53, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 53 into our formula, we get:
(42 + 53)/2 = 47.5
Thus, the number halfway between 42 and 53 is 47.5.
To check that our answer is correct, we subtract 42 from 47.5 and subtract 47.5 from 53 and compare the two numbers:
47.5 - 42 = 5.5
53 - 47.5 = 5.5
As you can see, the halfway number is 5.5 higher than 42 and 5.5 lower than 53. Therefore, our halfway between answer of 47.5 above is correct.
Halfway Between
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Halfway Between 42 and 54
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