
When you ask "What number is halfway between 48 and 155?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=48 and Y=155.

To find the number halfway between 48 and 155, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 48 and 155 into our formula, we get:
(48 + 155)/2 = 101.5
Thus, the number halfway between 48 and 155 is 101.5.
To check that our answer is correct, we subtract 48 from 101.5 and subtract 101.5 from 155 and compare the two numbers:
101.5 - 48 = 53.5
155 - 101.5 = 53.5
As you can see, the halfway number is 53.5 higher than 48 and 53.5 lower than 155. Therefore, our halfway between answer of 101.5 above is correct.
Halfway Between
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Halfway Between 48 and 156
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