The video tutorial explains how to place fractions with a numerator of 1 on a number line by dividing the space between whole numbers into equal parts. It covers the basics of fractions, number lines, and demonstrates how to locate fractions like 1/3 and 1/4 on a number line by breaking the space into equal parts and identifying the correct position based on the numerator and denominator.

What new insight or understanding did you gain from this video?