Description: Learn to graph and locate fractions on a number line. Created by Sal Khan. So let's say we select this section right over here, that we have selected 1/5 of the whole, 1 out of the 5 equal sections. We could do the exact same thing on a number line. Everything we've been doing so far has to deal with shapes, but we could do the exact same idea on a number line.*Teacher Advisor is 100% free.