Curated OER
Least Common Multiple or Least Common Denominator
Fifth and sixth graders solve 12 math problems by finding the least common multiple or least common denominator. They type the answer into the text box.
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
Adding Fractions With Like Denominators
Students investigate the concept of adding fractions with like denominators. They review how to combine the numerators. Students use cutouts to handle fractions that are hands on while comparing them to slices of pizza. They work...
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...
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
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...
Curated OER
Fraction X - Adding Unlike Denominators
Adding fractions with unlike denominators is a difficult process to master. This fine presentation does a terrific job of leading young math whizzes through the steps necessary to perform this calculation. The slides have clear graphics,...
Curated OER
Adding Fractions
Each of these 20 fraction pairs needs to be totaled, but that's not all there is to do! Scholars find the least common denominator first, then reduce the answer to simplest form if needed. These practice problems are excellent in the...
West Contra Costa Unified School District
Lowest Common Multiple through the Grades
The LCM will be your new BFF. Learners review least common multiple and least common denominator applications, mostly on fractions, from middle school. Scholars then see how the LCM can be applied to various types of problems from...
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...
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.
PBS
Working with Common Denominators: Assessments
Now that the practice is over, see if young mathematicians can utilize their new skills on finding common denominators and adding fractions. The assessment contains one map challenge and follows with skills practice.
Curriculum Corner
Fraction Brochures
Make fractions fun and interesting by using a brochure form. Young mathematicians practice and gain a better understanding of how to add and subtract fractions, simplify fractions, and find LCD (least common denominator). The resources...
Math Centre
Fractions: Adding and Subtracting
Young mathematicians piece together the puzzle of fractions. Starting with the addition and subtraction of fractions with like denominators, this series of example problems and skills practice exercises transitions students to working...
Curated OER
Adding and Subtracting Fractions
In this adding and subtracting fractions worksheet, students are guided through the process of adding and subtracting fractions and finding the least common denominator for fractions with different denominators. They practice adding and...
Curated OER
Adding Fractions
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...
Curated OER
Student Exploration: Adding Fractions
Students complete activities to learn how to add fractions. For this fractions lesson, students complete a set of prior knowledge questions for fractions. Students then review fraction vocabulary while solving a fraction word problem.
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
Add Fractions (A)
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...
Curated OER
Adding or Subtraction Algebraic Fractions
In this Algebra I/Algebra II worksheet, students add and subtract algebraic fractions and reduce the answer to lowest terms. The two page worksheet contains a combination of eleven multiple choice and free response questions. Answers...
Illustrative Mathematics
Finding Common Denominators to Add
Finding common denominators is an important strategy when adding fractions with unlike denominators. In the first two questions in this three-question task, fifth graders are asked to combine fractions and draw a picture to show their...
Math Centre UK
Fractions
Reinforce fraction instruction with an informative worksheet equipped to provide independent practice, as well as guidance and modeling. Support is provided to boost proficiency in finding equivalent fractions, and adding, subtracting,...
Curated OER
Adding and Subtracting Fractions
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...
Del Mar College
Arithmetic of Fractions
Never forget how to add, subtract, multiply, or divide fractions with a two-page document detailing each operation.