When you ask "What number is halfway between 91 and 143?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=91 and Y=143.
To find the number halfway between 91 and 143, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 91 and 143 into our formula, we get:
(91 + 143)/2 = 117
Thus, the number halfway between 91 and 143 is 117.
To check that our answer is correct, we subtract 91 from 117 and subtract 117 from 143 and compare the two numbers:
117 - 91 = 26
143 - 117 = 26
As you can see, the halfway number is 26 higher than 91 and 26 lower than 143. Therefore, our halfway between answer of 117 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 91 and 144
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