Halfway Between 7 and 21

When you ask "What number is halfway between 7 and 21?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=7 and Y=21.

Halfway Between Line

To find the number halfway between 7 and 21, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 7 and 21 into our formula, we get:

(7 + 21)/2 = 14

Thus, the number halfway between 7 and 21 is 14.

To check that our answer is correct, we subtract 7 from 14 and subtract 14 from 21 and compare the two numbers:

14 - 7 = 7
21 - 14 = 7

As you can see, the halfway number is 7 higher than 7 and 7 lower than 21. Therefore, our halfway between answer of 14 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 7 and 22
Here is our next Halfway Between calculation.