Adding Fractions Using the Number Line (Part 2)

The video tutorial explains how to add fractions with unlike denominators using number lines. It begins by illustrating the problem of adding fractions with different denominators and then demonstrates how to find a common denominator by dividing a number line into equal parts. The tutorial shows how to represent fractions as equivalent fractions with a common denominator and then adds them using a number line. The lesson concludes with a summary of the process and the result of adding the fractions.

Why is it necessary to extend the number line when adding 1/2 and 2/3?

What is the result of adding 1/2 and 2/3 using the number line method described?