
When you ask "What number is halfway between 42 and 179?" 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=179.

To find the number halfway between 42 and 179, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 179 into our formula, we get:
(42 + 179)/2 = 110.5
Thus, the number halfway between 42 and 179 is 110.5.
To check that our answer is correct, we subtract 42 from 110.5 and subtract 110.5 from 179 and compare the two numbers:
110.5 - 42 = 68.5
179 - 110.5 = 68.5
As you can see, the halfway number is 68.5 higher than 42 and 68.5 lower than 179. Therefore, our halfway between answer of 110.5 above is correct.
Halfway Between
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Halfway Between 42 and 180
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