Halfway Between 45 and 690

When you ask "What number is halfway between 45 and 690?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=45 and Y=690.

Halfway Between Line

To find the number halfway between 45 and 690, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 45 and 690 into our formula, we get:

(45 + 690)/2 = 367.5

Thus, the number halfway between 45 and 690 is 367.5.

To check that our answer is correct, we subtract 45 from 367.5 and subtract 367.5 from 690 and compare the two numbers:

367.5 - 45 = 322.5
690 - 367.5 = 322.5

As you can see, the halfway number is 322.5 higher than 45 and 322.5 lower than 690. Therefore, our halfway between answer of 367.5 above is correct.

Halfway Between
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Halfway Between 45 and 691
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