Halfway Between 15 and 311

When you ask "What number is halfway between 15 and 311?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=15 and Y=311.

Halfway Between Line

To find the number halfway between 15 and 311, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 15 and 311 into our formula, we get:

(15 + 311)/2 = 163

Thus, the number halfway between 15 and 311 is 163.

To check that our answer is correct, we subtract 15 from 163 and subtract 163 from 311 and compare the two numbers:

163 - 15 = 148
311 - 163 = 148

As you can see, the halfway number is 148 higher than 15 and 148 lower than 311. Therefore, our halfway between answer of 163 above is correct.

Halfway Between
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Halfway Between 15 and 312
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