When you ask "What number is halfway between 73 and 387?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=73 and Y=387.
To find the number halfway between 73 and 387, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 73 and 387 into our formula, we get:
(73 + 387)/2 = 230
Thus, the number halfway between 73 and 387 is 230.
To check that our answer is correct, we subtract 73 from 230 and subtract 230 from 387 and compare the two numbers:
230 - 73 = 157
387 - 230 = 157
As you can see, the halfway number is 157 higher than 73 and 157 lower than 387. Therefore, our halfway between answer of 230 above is correct.
Halfway Between
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Halfway Between 73 and 388
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