When you ask "What number is halfway between 74 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=74 and Y=155.
To find the number halfway between 74 and 155, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 74 and 155 into our formula, we get:
(74 + 155)/2 = 114.5
Thus, the number halfway between 74 and 155 is 114.5.
To check that our answer is correct, we subtract 74 from 114.5 and subtract 114.5 from 155 and compare the two numbers:
114.5 - 74 = 40.5
155 - 114.5 = 40.5
As you can see, the halfway number is 40.5 higher than 74 and 40.5 lower than 155. Therefore, our halfway between answer of 114.5 above is correct.
Halfway Between
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Halfway Between 74 and 156
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