Halfway Between 15 and 789

When you ask "What number is halfway between 15 and 789?" 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=789.

Halfway Between Line

To find the number halfway between 15 and 789, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 15 and 789 into our formula, we get:

(15 + 789)/2 = 402

Thus, the number halfway between 15 and 789 is 402.

To check that our answer is correct, we subtract 15 from 402 and subtract 402 from 789 and compare the two numbers:

402 - 15 = 387
789 - 402 = 387

As you can see, the halfway number is 387 higher than 15 and 387 lower than 789. Therefore, our halfway between answer of 402 above is correct.

Halfway Between
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Halfway Between 15 and 790
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