Illustrative Mathematics
Listing Fractions in Increasing Size
Increase the depth of your class's fractional number sense with this number-ordering activity. Given four fractions, each with different numerators and denominators, young learners are asked to place them in order from smallest to...
Curated OER
Common Denominator Worksheet
In this fractions instructional activity, students find the common denominators of the twelve given fractions on each of the ten pages.
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.
Curated OER
Subtract Fractions With Like Denominators (C)
In this fractions worksheet, students solve 21 problems in which simple fractions with like denominators are subtracted. An example with hints is provided.
Ohio Department of Education
Actions with Fractions: Adding and Subtracting Fractions with Common Denominators
Fourth graders develop a conceptual understanding of fractions and begin to add and subtract fractions with like denominators. Included is a worksheet to assess readiness and a teacher's checklist showing class understanding at a...
Curated OER
Subtract Fractions With Like Denominators (I)
In this finding the differences of fractions with common denominators worksheet, students subtract the numerators, keep the same denominators, and reduce to lowest terms. Students solve 14 problems.
Curated OER
Subtract Fractions With Like Denominators (E)
In this fractions worksheet, learners solve 24 problems in which fractions with like denominators are subtracted. An example is provided with hints.
Curated OER
Add Fractions With Like Denominators (H)
For this fractions worksheet, students solve 12 problems in which simple fractions with like denominators are added. There is an example with directions.
Curated OER
Add Fractions With Like Denominators
In this adding fractions activity, students add up 2 fractions that have like denominators. There are 14 problems to complete.
Curated OER
Add Fractions With Like Denominators (C)
In this adding fractions activity, students add 2 numbers that have like denominators and unlike numerators. Students are required to complete 14 math problems.
Curated OER
LCD of Expressions
For 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.
Curated OER
The 3 R's of Common Denominators (Language)
Students solve various word problems that deal with common denominators, and write the mathematical explanations they used to obtain the solutions.
Curated OER
Adding and Subtracting Fractions (With Unlike Denominators)
In this math worksheet, students subtract and add fractions with unlike denominators. Students solve the problem in steps. They are given examples of how to solve the problems.
Curated OER
Least Common Multiple
Give students detailed instructions on how to find the Least Common Multiple as well as practice with this thorough introductory worksheet. Instructions for this worksheet include an explanation of both guess and check as well as prime...
K-5 Math Teaching Resources
Adding Mixed Numbers (Unlike Denominators)
Mix things things up in your elementary math class with a series of problem-solving exercises. Presented with a series of mixed number word problems, young mathematicians are asked to solve them by using either visual fraction models or...
Curated OER
Comparing Fractions with Like Numerators or Denominators
Two visual problems give mathematicians a chance to compare fractions with like denominators. They examine two pairs of shapes with portions filled in, adding the greater than, less than, or equal to symbol between each. The shape pairs...
Curated OER
Comparing Fractions with Like Numerators or Denominators
Compare fractions with these visual examples, all of which have like denominators. There are five pairs of shapes here with various portions shaded. Each pair is segmented into the same number of sections, so comparing is much simpler....
Curated OER
Fractions VIII: Subtacting Like Denominators
View this presentation, which introduces the concepts of fractions, the parts of fractions, how to subract fractions with common denominators, and how to simplify the answers into lowest terms with your class. Use for an introduction or...
Curated OER
Fractions VII Adding Like Denominators
Explore the concept of adding fractions with like denominators. Your visual and logical learners will gain a comfortable understanding of this concept, as each slide contains an example and steps that are clearly explained. Several...
PBS
Working with Common Denominators: Activities and Supplemental Materials
Enjoy these straightforward and simple learning exercise pages that practice with different denominators. The practice starts simple with adding fractions together and then works on a recipe that needs to be tripled.
Education Development Center
Adding Fractions with Unlike Denominators
If the fractions don't have a common denominator, make them have one. Learners first read and analyze a conversation of pupils trying to add 2/5 and 1/2. They compare the process of adding fractions to the process of adding quantities...
Curated OER
Discovering New Units
Students use Cuisenaire rods to explore common denominators. In this fractions instructional activity, students build Cuisenaire representations of fractions, then find their equivalent counterparts to find the common denominator.
Curated OER
Comparing Fractions
Young mathematicians compare two fractions with like denominators and then move to the next level to compare fractions with unlike denominators. They will first try to use mental math to make educated guesses. There are a few guidelines...
Curated OER
Comparing Apples With Apples 1
Elementary schoolers observe and demonstrate how to add and subtract fractions with like denominators. They observe the teacher model a variety of fraction addition and subtraction problems and use fraction strips to complete a worksheet.
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