When you ask "What number is halfway between 42 and 693?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=42 and Y=693.
To find the number halfway between 42 and 693, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 42 and 693 into our formula, we get:
(42 + 693)/2 = 367.5
Thus, the number halfway between 42 and 693 is 367.5.
To check that our answer is correct, we subtract 42 from 367.5 and subtract 367.5 from 693 and compare the two numbers:
367.5 - 42 = 325.5
693 - 367.5 = 325.5
As you can see, the halfway number is 325.5 higher than 42 and 325.5 lower than 693. Therefore, our halfway between answer of 367.5 above is correct.
Halfway Between
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Halfway Between 42 and 694
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