Yes.
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It helps with the adding and subtracting of fractions.
When adding or subtracting unlike fractions, the LCM process is used to find the least common denominator.
Least common multiple is needed to find the least common denominator when adding or subtracting fractions with different denominators Greatest common factor is needed when reducing fractions to their lowest terms
When adding or subtracting fractions with different denominators their least common multiple must be found in order to carry out the given calculations.
The least common multiple, or LCM, is the smallest positive integer that all the members of a given set of numbers will divide into evenly with no remainder. It is helpful for adding and subtracting unlike fractions.