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Lesson Plan
Curated OER

Finding the Least Common Multiple

For Teachers 5th - 6th
In this math worksheet, students learn to find the least common multiple and rewrite fractions with common denominators. There are step by step directions and 10 problems.
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Worksheet
Curated OER

Least Common Multiple

For Students 8th
In this least common multiples learning exercise, 8th graders solve 20 different problems that include determining the least common multiple for each set of numbers. They first list the prime factors of each number given in the...
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Lesson Plan
Curated OER

Adding and Subtracting Fractions

For Teachers 8th - Higher Ed
In this adding and subtracting fractions worksheet, students solve 5 sets of problems related to the adding and subtracting of fractions. First, they identify that each fraction has a common denominator and then simplify by adding or...
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Interactive
Curated OER

The Pill Problem involving LCM

For Students 8th - 10th
In this problem solving worksheet, students find the next day that two events will both happen given the clues provided.  The solution to the problem is given at the bottom of the page.
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Worksheet
Curated OER

Adding Fractions

For Students 5th - 6th Standards
It's all here: uncommon denominators, reducing, improper fractions...mathematicians have their hands full as they complete 16 fraction addition problems. There are two examples showing them the steps required, and each problem guides...
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Worksheet
Curated OER

Add Fractions (A)

For Students 5th - 6th
In this mathematics worksheet, students solve a number of problems by finding and equivalent fraction using the least common denominator in each. Then they add and change to a mixed number when necessary. Students also reduce the...
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Worksheet
Curated OER

Mighty Multiples

For Students 5th - 6th
In this math instructional activity, students list the first 8 multiples of 8 numbers and identify the least common multiple for 5 pairs of factors. Students also find the lowest common denominator for 15 sets of fractions.
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Worksheet
Curated OER

Mixed Numbers and Fractions

For Students 6th - 7th
For this mixed numbers and fractions worksheet, students solve 18 different problems by addition and subtraction methods. First, they determine the least common denominator in each problem. Then, students find the equivalent fractions...
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Interactive
Curated OER

Adding and Subtracting Fractions

For Students 3rd - 5th
In this math worksheet, students add or subtract fractions. Students find common denominators where needed and simplify their answers. Hints are available.
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Lesson Plan
Curated OER

Lesson 56

For Teachers 6th
Sixth graders practice Least Common Multiple in fractions. In this fraction lesson, 6th graders look at two different fractions and find a common denominator. They sing a song to memorize mean, median, and mode. 
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Worksheet
Curated OER

Fractions

For Students 9th - Higher Ed
In this math worksheet, students solve fraction problems. Students find equivalents, use common denominators, and explain their answers.
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Lesson Plan
Curated OER

Accelerated Arithmetic-- Find the Lowest Common Denominator

For Teachers 4th - 5th
In this math worksheet, young scholars solve 12 problems in which simple fractions with unlike denominators are added. Examples are in a horizontal format with ample room to rewrite with common denominators.
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Worksheet
Curated OER

Add and Subtract with Unlike Denominators

For Students 5th - 8th
In this adding and subtracting with unlike denominators learning exercise, learners add and subtract fractions with unlike denominators. They complete six problems.
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Lesson Plan
Curated OER

Comparing and Ordering Fractions and Mixed Numbers

For Teachers 5th
In this mathematics worksheet, 5th graders find the least common denominator of each fraction. Then they write equivalent fractions using the LCD and compare the numerators of the new fractions.
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Unit Plan
National Security Agency

Fraction Fever

For Teachers 4th - 5th Standards
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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Lesson Plan
Curated OER

Fractions in Action

For Teachers 4th - 6th
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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Worksheet
K-5 Math Teaching Resources

Subtracting Mixed Numbers (Unlike Denominators)

For Students 3rd - 7th Standards
Young mathematicians demonstrate their ability to subtract mixed numbers by completing this collection of fraction word problems. From figuring out the weight of objects in a package, to finding the difference in height between two...
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Worksheet
Curated OER

Adding Fractions: Unlike Denominators

For Students 5th - 6th
In this adding fractions worksheet, learners solve 9 problems in which simple fractions with unlike denominators are added. Students write the equivalent fractions using the LCD before solving.
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Lesson Plan
Illustrative Mathematics

Plastic Building Blocks

For Teachers 3rd - 5th Standards
Let's build a castle! Dennis and Cody have big plans, but do they have enough blocks between the two of them to accomplish their goal? A great context that requires students to add and compare mixed numbers. Encourage the use of pictures...
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Worksheet
2
2
Curated OER

Simplifying Fractions

For Students 7th - 8th
In this simplifying fractions instructional activity, students solve and complete 10 various types of problems. First, they write the fractions in simplest form and find the lowest common denominator for each pair. Then, students change...
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Lesson Plan
Curated OER

Solving Rational Equations

For Teachers 9th - 10th
In this rational equation worksheet, students solve rational expressions by finding the LCM. There are 18 problems on this two-page worksheet.
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Worksheet
Curated OER

Fraction Subtraction

For Students 7th
In this fraction subtraction worksheet, 7th graders solve 10 different problems that include fractions and subtraction. First, they find the least common denominator in each if the denominators are not the same. Then, students subtract...
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Worksheet
Curated OER

Rationals

For Students 9th - 11th
In this algebra worksheet, students divide rational expressions. They find the Least common denominator to simplify the rational expression. There are 8 problems.
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eBook
CK-12 Foundation

CK-12 Middle School Math Concepts - Grade 6

For Students 6th Standards
Twelve chapters cover a multitude of math concepts found in the Common Core standards for sixth grade. Each title provides a brief explanation of what you will find inside the chapter—concepts from which you can click on and learn more...