Help! I need to subtract these Fractions!

The video tutorial addresses a challenging subtraction problem involving fractions with different denominators. The instructor demonstrates how to rewrite the problem vertically, find a common denominator, and perform borrowing in subtraction. A shortcut is introduced to simplify the process, and the video concludes with the final steps and a summary of the solution.

Explain the shortcut used to simplify the subtraction of the fractions.

What is the final result of the subtraction problem presented in the video?