Halfway Between 20 and 87

When you ask "What number is halfway between 20 and 87?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=20 and Y=87.

Halfway Between Line

To find the number halfway between 20 and 87, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 20 and 87 into our formula, we get:

(20 + 87)/2 = 53.5

Thus, the number halfway between 20 and 87 is 53.5.

To check that our answer is correct, we subtract 20 from 53.5 and subtract 53.5 from 87 and compare the two numbers:

53.5 - 20 = 33.5
87 - 53.5 = 33.5

As you can see, the halfway number is 33.5 higher than 20 and 33.5 lower than 87. Therefore, our halfway between answer of 53.5 above is correct.

Halfway Between
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Halfway Between 20 and 88
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