When you ask "What number is halfway between 51 and 197?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=51 and Y=197.
To find the number halfway between 51 and 197, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 51 and 197 into our formula, we get:
(51 + 197)/2 = 124
Thus, the number halfway between 51 and 197 is 124.
To check that our answer is correct, we subtract 51 from 124 and subtract 124 from 197 and compare the two numbers:
124 - 51 = 73
197 - 124 = 73
As you can see, the halfway number is 73 higher than 51 and 73 lower than 197. Therefore, our halfway between answer of 124 above is correct.
Halfway Between
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Halfway Between 51 and 198
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