A video on how to get common denominators is a helpful resource for students who are learning how to add and subtract fractions. Common denominators are the lowest common multiples of the denominators of the fractions being added or subtracted. Finding a common denominator is necessary in order to add or subtract fractions with different denominators.
There are a few different methods for finding a common denominator. One method is to find the least common multiple of the denominators. Another method is to use a common denominator chart. A common denominator chart lists the common denominators for all of the fractions between 1 and 100.
