When you ask "What number is halfway between 7 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=7 and Y=486.
To find the number halfway between 7 and 486, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 486 into our formula, we get:
(7 + 486)/2 = 246.5
Thus, the number halfway between 7 and 486 is 246.5.
To check that our answer is correct, we subtract 7 from 246.5 and subtract 246.5 from 486 and compare the two numbers:
246.5 - 7 = 239.5
486 - 246.5 = 239.5
As you can see, the halfway number is 239.5 higher than 7 and 239.5 lower than 486. Therefore, our halfway between answer of 246.5 above is correct.
Halfway Between
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Halfway Between 7 and 487
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