Halfway Between 9 and 87

When you ask "What number is halfway between 9 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=9 and Y=87.

Halfway Between Line

To find the number halfway between 9 and 87, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 9 and 87 into our formula, we get:

(9 + 87)/2 = 48

Thus, the number halfway between 9 and 87 is 48.

To check that our answer is correct, we subtract 9 from 48 and subtract 48 from 87 and compare the two numbers:

48 - 9 = 39
87 - 48 = 39

As you can see, the halfway number is 39 higher than 9 and 39 lower than 87. Therefore, our halfway between answer of 48 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 9 and 88
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