When you ask "What number is halfway between 74 and 487?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=74 and Y=487.
To find the number halfway between 74 and 487, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 74 and 487 into our formula, we get:
(74 + 487)/2 = 280.5
Thus, the number halfway between 74 and 487 is 280.5.
To check that our answer is correct, we subtract 74 from 280.5 and subtract 280.5 from 487 and compare the two numbers:
280.5 - 74 = 206.5
487 - 280.5 = 206.5
As you can see, the halfway number is 206.5 higher than 74 and 206.5 lower than 487. Therefore, our halfway between answer of 280.5 above is correct.
Halfway Between
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Halfway Between 74 and 488
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