Curated OER
Least Common Multiple
Looking for a good presentation on multiples, least common multiples, and factoring? This one's for you! In it, youngsters are coached on the main techniques used in these mathematical processes. There are tons of practice opportunities,...
Online Math Learning
Word Problems That Use GFC or LCM
This is a webpage that contains five word problems requiring learners to find the least common multiple or least common denominator.
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LCM: Factor Trees, Numbers Up to 10
Fourth and fifth graders complete factor trees to find the lowest common multiple out of the two numbers given up to the number 10. Students complete four problems.
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Greatest Common Factor and Least Common Multiple Story Problems
In this story problems worksheet, young scholars determine whether to find either the greatest common factor or the least common multiple in order to solve the problem.
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Practice Quiz: Least Common Multiple
Use this least common multiple worksheet to have your learners complete two mutliple choice questions containing one and two-digit numbers. Answers are provided online.
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Least Common Multiple
Given ten pairs of numbers, mathematicians find the least common multiple for each. The numbers span from 2-30, and are generally introductory for this skill (no curve balls). Encourage learners to write out multiples alongside the...
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Fraction XII: Subtracting Unlike Denominators
This fractions PowerPoint defines and gives examples of multiples and least common multiple, then models how to list multiples and circle the least common multiple. Each step to use in subtracting fractions with unlike denominators is...
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Fraction X--Adding Unlike Denominators
In this math PowerPoint, the process of adding fractions with unlike denominators is broken down into a logical, easy-to-follow sequence of steps. Definitions and examples of multiples, least common multiple, and least common denominator...
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Fill the Number Grid
Patterns emerge as the class works together to fill in a number grid. This whole group activity is designed to make all learners feel successful, and ultimately turns into a lesson on the least common multiple.
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Lowest Common Multiple
In this lowest common multiple instructional activity, students find the LCM of 2 digit numbers that don't exceed the number 20. Students complete 10 problems.
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Least Common Multiples
For this least common multiple worksheet, students practice their math skills as they solve 40 problems that require them to find the least common multiple for each of the 40 pairs of numbers.
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Least Common Multiple Practice 3
In this least common multiples practice worksheet, students examine sample problems and solve 20 problems that require them to find least common multiples.
Illustrative Mathematics
Multiples of 3, 6, and 7
What are the common multiples of three, six, and seven? Assess young mathematicians ability to find the common multiples of three numbers in a straightforward math task.
Curated OER
Finding the LCM
Students explore the concept of finding the least common multiple of two numbers. In this least common multiple instructional activity, students find the least common multiple of two numbers.
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Least Common Multiple
In this least common multiple worksheet, students review the steps for finding the least common multiple using lists of multiples and prime factorization. Students then list multiples to find the LCM for the given numbers. Students then...
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Least Common Multiple Practice 2
In this least common multiples practice worksheet, students examine sample problems and solve 20 problems that require them to find least common multiples.
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Least Common Multiple Practice
In this least common multiples practice worksheet, students examine sample problems and solve 20 problems that require them to find least common multiples.
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Least Common Multiple: Post Test
In this least common multiple worksheet, students answer multiple choice questions about the least common multiple of numbers and rules on how to find it. Students complete 10 questions total.
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Leveled Problem Solving: Least Common Multiple
In this least common multiple practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
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Least Common Multiple Practice
In this least common multiples learning exercise, students write multiples, write prime factorization, find LCM's and answer two test prep questions. The learning exercise references a Houghton Mifflin text.
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Finding The LCM
Students find the least common multiple. In this LCM lesson, students find the multiples of two numbers. They view which multiples are common between the two numbers and then find the smallest.
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Least Common Multiple
In this least common multiple practice worksheet, students apply their problem solving skills to identify the multiples of the 4 given numbers and identify the least common multiple of 1 pair of numbers.
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LCM-Factor Trees
In this LCM worksheet, students use work space provided to create factor trees and find the LCM of sets of numbers. Answers are included on page 2.
National Security Agency
Fraction Fever
This unit on fractions allows for upper-aged elementary learners to explore ways to find the greatest common factor and least common multiple of two numbers. Ultimately, young mathematicians will be able to identify equivalent fractions,...
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