When you ask "What number is halfway between 77 and 246?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=77 and Y=246.
To find the number halfway between 77 and 246, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 77 and 246 into our formula, we get:
(77 + 246)/2 = 161.5
Thus, the number halfway between 77 and 246 is 161.5.
To check that our answer is correct, we subtract 77 from 161.5 and subtract 161.5 from 246 and compare the two numbers:
161.5 - 77 = 84.5
246 - 161.5 = 84.5
As you can see, the halfway number is 84.5 higher than 77 and 84.5 lower than 246. Therefore, our halfway between answer of 161.5 above is correct.
Halfway Between
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Halfway Between 77 and 247
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