Misconception multiplying by the same number to both fractions

The video tutorial explains how to add fractions by finding common denominators. It highlights common mistakes students make, such as using the same multiple for both fractions, and demonstrates the correct method using an example with fractions 3/8 and 2/5. The tutorial emphasizes the importance of multiplying each fraction by the correct multiple to achieve a common denominator, resulting in the correct sum of 31/40.

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