# Least Common Multiple: Summary

In arithmetic, the word multiple means the product of any quantity and an integer. For example, the multiples of 2 are 2, 4, 6, 8 and so on are the multiple of 3 are 3, 6, 9, 12 and so on. In this series, we learn about the concept of multiples particularly Least Common Multiple (LCM). We will also learn how to get the LCM of two or more numbers, and how to apply LCM in addition of dissimilar fractions.

**LCM1 Least Common Multiple Part 1 – Basic Concepts**

In this post, we learn about the difference among multiples, common multiples, and LCM. We discuss several examples to illustrate these concepts.

**LCM2 Least Common Multiple Part 2 – The Ladder Method**

In this post, we learn further about LCM. We introduce a technique on getting the LCM of two or more numbers namely the “ladder” method.

**LCM3 Least Common Multiple Part 3 – Application of LCM**

In this post, we learn the most common application of LCM which is on addition of fractions. If you have two or more dissimilar fractions, you need to get the LCM of their denominators,

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