When you ask "What number is halfway between 49 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=49 and Y=198.
To find the number halfway between 49 and 198, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 198 into our formula, we get:
(49 + 198)/2 = 123.5
Thus, the number halfway between 49 and 198 is 123.5.
To check that our answer is correct, we subtract 49 from 123.5 and subtract 123.5 from 198 and compare the two numbers:
123.5 - 49 = 74.5
198 - 123.5 = 74.5
As you can see, the halfway number is 74.5 higher than 49 and 74.5 lower than 198. Therefore, our halfway between answer of 123.5 above is correct.
Halfway Between
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Halfway Between 49 and 199
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