Halfway Between 21 and 45

When you ask "What number is halfway between 21 and 45?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=21 and Y=45.

Halfway Between Line

To find the number halfway between 21 and 45, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 21 and 45 into our formula, we get:

(21 + 45)/2 = 33

Thus, the number halfway between 21 and 45 is 33.

To check that our answer is correct, we subtract 21 from 33 and subtract 33 from 45 and compare the two numbers:

33 - 21 = 12
45 - 33 = 12

As you can see, the halfway number is 12 higher than 21 and 12 lower than 45. Therefore, our halfway between answer of 33 above is correct.

Halfway Between
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Halfway Between 21 and 46
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