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The least common multiple is smallest multiple shared by a set of numbers.
Finding the least common multiple is necessary when adding or subtracting fractions with different denominators.

Least common multiple - Wikipedia

en.wikipedia.org/wiki/Least_common_multiple

In arithmetic and number theory, the least common multiple, lowest common multiple, or smallest common multiple of two integers a and b, usually denoted by  ...

Least common multiple - Khan Academy

Sal finds the LCM (least common multiple) of 12 and 36, and of 12 and 18. He shows how to do that using the prime factorization method, which is a just great!

Least common multiple | Adding & subtracting rational expressions ...

Sal finds the LCM (least common multiple) of 12 and 36, and of 12 and 18. He shows how to do that using the prime factorization method, which is a just great!

Least Common Multiple - Math is Fun

www.mathsisfun.com/least-common-multiple.html

Least Common Multiple of 3 and 5: List the Multiples of each number,. The multiples of 3 are 3, 6, 9, 12, 15, 18, ... etc. The multiples of 5 are 5, 10, 15, 20, 25,  ...

Factoring - Least Common Multiple (LCM) - First Glance - Math.com

www.math.com/school/subject1/lessons/S1U3L3GL.html

A common multiple is a number that is a multiple of two or more numbers. ... The least common multiple (LCM) of two numbers is the smallest number (not zero) ...

LCM Calculator - Least Common Multiple - Calculator Soup

www.calculatorsoup.com/calculators/math/lcm.php

Calculate the lcm of 2 or more values. Finds the lcm or least common multiple using the gcd and Euclid's algorithm.

Factoring - Least Common Multiple (LCM) - In Depth - Math.com

www.math.com/school/subject1/lessons/S1U3L3DP.html

The least common multiple, or LCM, is another number that's useful in solving many math problems. Let's find the LCM of 30 and 45. One way to find the least ...