Curated OER
Factors and Fractions
Find the greatest common factor of numbers. Learners review prime and composite numbers and how to find the prime factorization of a number. They also review the greatest common factor, least common multiple, and learn new ways to find...
Curated OER
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
For 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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Least Common Multiple
In this least common multiple worksheet, 6th graders list multiples of numbers 2 through 5 and then find the least common multiple of 2 of the numbers. Students complete 5 problems.
Gfletchy
Geared Up
Get the class's gears turning! Pupils first watch a video that introduces the situation: Given three gears, how many turns will it take for the dots shown on the gears to line up? They count the number of spurs on each gear, then use the...
Curated OER
LCD of Expressions
In this algebra worksheet, 11th graders solve rational expression by converting the denominators to the same unit using the least common denominator and multiplication. There are 13 problems.
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Least Common Multiple
In this pre-algebra activity, learners solve 26 problems in order to find the least common multiple of the two 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.
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LCM of 3 Numbers: Factor Trees
In this lowest common multiples worksheet, students create factor trees to find the lowest common multiple of 3 numbers. Students complete 4 problems.
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,...
Curated OER
Fractions in Action
Investigate equivalent fractions with your class. They compare and order fractions. Then they work cooperatively in groups to experiment and problem solve with fractions using a game format. Multiple resources are provided.
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Paper Pool
Young scholars explore ratio and proportion, GCF, and LCM. In this middle school mathematics lesson, students play an interactive Paper Pool game that provides an opportunity to increase their understanding or ratio, proportion, GCF,...
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Addition and Subtraction of Rational Expressions
In this rational expressions worksheet, 9th graders solve and complete 15 different problems that include adding and subtracting rational expressions. First, they define Least Common Multiple to get a common denominator in an equation....
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A Problem in Satellite Synchrony
In this satellite synchrony worksheet, students use a spreadsheet or Least Common Multiples to solve 4 problems related to the satellite orbits, orbital periods and their synchronicity. Students determine when the satellites launched in...
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Number Sense and Operations
In this number sense and operations instructional activity, students solve 15 different problems that include number lines and identifying various types of numbers. First, they solve a given equation and then check their work. Then,...
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Factors
In this factors worksheet, students identify factors of given numbers. They identify prime numbers and name the least common multiple. This two-page worksheet contains 24 problems. This worksheet is designed to be completed mentally.
Curated OER
Primes and Prime Factors
In this primes and prime factors instructional activity, 8th graders solve 21 different problems to include identifying each number as prime, composite, or neither prime nor composite and listing all the primes less than 200. Then they...
Scholastic
Study Jams! Add & Subtract with Common Denominators
RJ and Zoey are at camp and need to get back to the mess hall for lunch, but they don't know how far they have to walk. Help them figure out the distance while teaching young mathematicians how to add and subtract fractions with this...
Curated OER
Solving Rational Equations
In this rational equations worksheet, students identify the least common multiple and solve rational equations. This two-page worksheet contains 18 problems.
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Factoring
In this math worksheet, learners complete problems involving factoring. In the first section, they find all factors of a number. Students find the least common multiple and the greatest common factors. This is a worksheet generator. The...
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Solving Rational Equations
In this rational equations worksheet, students solve rational equations. They find the least common multiple for given complex fractions. This two-page worksheet contains 18 problems. An example is provided at the beginning of the...
Curated OER
Planetary Alignments
In this planetary alignments activity, students use 2 different methods to find out when planet alignments will occur. They use a three number series and they use least common multiples to find out when Mercury and Venus will align.
Curated OER
Factors, Prime Factorization, Multiples
Seventh graders examine Prime Factorizations, Multiples, and Factors. In this prime number, factorization, and multiples lesson, 7th graders identify greatest common factors and least common multiples. Students use problem solving skills...
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Common Multiples
Students discover the concept of common multiples in numbers by completing a worksheet. In this number identification lesson, students investigate ways to find multiples of numbers and specifically identify the lowest common multiple....