Making Common Denominators - Quick Method and Using the Least Common Denominator
Review video showing two different ways to make common denominators. This is also sometimes called turning unlike fractions into like fractions.
00:00-01:17 What are common denominators and why would you need them
01:18-3:37 Quick Method - Multiplying by Denominators
03:37-08:29 Better Method - Least Common Denominator