The distance between these two is 5/21.
In order to find the distance between two points on a number line, subtract one from the other. In this case, we'll need to give them common denominators.
-2/3 - -3/7
-14/21 + 9/21
-5/21
Because our answer is negative, we take the absolute value. Distance is usually expressed as a positive.
5/21
