When you ask "What number is halfway between 47 and 198?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=47 and Y=198.
To find the number halfway between 47 and 198, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 47 and 198 into our formula, we get:
(47 + 198)/2 = 122.5
Thus, the number halfway between 47 and 198 is 122.5.
To check that our answer is correct, we subtract 47 from 122.5 and subtract 122.5 from 198 and compare the two numbers:
122.5 - 47 = 75.5
198 - 122.5 = 75.5
As you can see, the halfway number is 75.5 higher than 47 and 75.5 lower than 198. Therefore, our halfway between answer of 122.5 above is correct.
Halfway Between
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Halfway Between 47 and 199
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