When you ask "What number is halfway between 86 and 297?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=86 and Y=297.
To find the number halfway between 86 and 297, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 86 and 297 into our formula, we get:
(86 + 297)/2 = 191.5
Thus, the number halfway between 86 and 297 is 191.5.
To check that our answer is correct, we subtract 86 from 191.5 and subtract 191.5 from 297 and compare the two numbers:
191.5 - 86 = 105.5
297 - 191.5 = 105.5
As you can see, the halfway number is 105.5 higher than 86 and 105.5 lower than 297. Therefore, our halfway between answer of 191.5 above is correct.
Halfway Between
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Halfway Between 86 and 298
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