Halfway Between 40 and 390

When you ask "What number is halfway between 40 and 390?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=40 and Y=390.

Halfway Between Line

To find the number halfway between 40 and 390, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 40 and 390 into our formula, we get:

(40 + 390)/2 = 215

Thus, the number halfway between 40 and 390 is 215.

To check that our answer is correct, we subtract 40 from 215 and subtract 215 from 390 and compare the two numbers:

215 - 40 = 175
390 - 215 = 175

As you can see, the halfway number is 175 higher than 40 and 175 lower than 390. Therefore, our halfway between answer of 215 above is correct.

Halfway Between
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Halfway Between 40 and 391
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