When you ask "What number is halfway between 75 and 486?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=75 and Y=486.
To find the number halfway between 75 and 486, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 75 and 486 into our formula, we get:
(75 + 486)/2 = 280.5
Thus, the number halfway between 75 and 486 is 280.5.
To check that our answer is correct, we subtract 75 from 280.5 and subtract 280.5 from 486 and compare the two numbers:
280.5 - 75 = 205.5
486 - 280.5 = 205.5
As you can see, the halfway number is 205.5 higher than 75 and 205.5 lower than 486. Therefore, our halfway between answer of 280.5 above is correct.
Halfway Between
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Halfway Between 75 and 487
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