Halfway Between 90 and 117

When you ask "What number is halfway between 90 and 117?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=90 and Y=117.

Halfway Between Line

To find the number halfway between 90 and 117, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 90 and 117 into our formula, we get:

(90 + 117)/2 = 103.5

Thus, the number halfway between 90 and 117 is 103.5.

To check that our answer is correct, we subtract 90 from 103.5 and subtract 103.5 from 117 and compare the two numbers:

103.5 - 90 = 13.5
117 - 103.5 = 13.5

As you can see, the halfway number is 13.5 higher than 90 and 13.5 lower than 117. Therefore, our halfway between answer of 103.5 above is correct.

Halfway Between
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Halfway Between 90 and 118
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