Curated OER
Fractions: Subtracting Like Denominators
These presentations, designed by Monica Yuskatis, are among the best math PowerPoints you can find. Use this one to lead your pupils through the steps needed to subtract fractions with like denominators, then simplify the answers into...
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
Add and Subtract Fractions with Like Denominators: 2 (Word Problems)
For this fraction worksheet, fourth and fifth graders solve six word problems, all having to do with adding or subtracting fractions with like denominators. This worksheet can be adapted to the Common Core standards in math.
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 Subtraction
In this fraction subtraction worksheet, students complete a set of 15 problems, subtracting fractions with common denominators. A reference web site is given for additional activities.
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.
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...
![Add Mixed Numbers With Like Denominators [J] Worksheet](http://content.lessonplanet.com/resources/thumbnails/217686/large/nziymduylmpwzw.jpg?1315013855 "Add Mixed Numbers With Like Denominators [J] Worksheet")
Curated OER
Add Mixed Numbers With Like Denominators [J]
In this mixed number addition worksheet, learners add a total of 14 problems, using mixed numbers with like denominators. An example problem appears at the top of the worksheet.
Curated OER
Add and Subtract Fractions with Like Denominators - CA Standards Worksheet
In this fraction learning exercise, students solve 6 word problems that have to do with adding or subtracting fractions with like denominators. All answers are to be reduced to simplest form.
CK-12 Foundation
Sums of Fractions with Like Denominators: Cheesy Bread
Five questions make up an interactive all about adding fractions with like denominators. Mathematicians answer multiple-choice problems and an open-ended question using a fraction model that resembles sliced bread. The practice ends with...
Curated OER
Subtraction Fractions, Common Denominators
How many steps do you need to subtract fractions with common denominators? Thirty problems await your kids, all with outlined steps for easy solving. Some fractions need to be reduced, while others will be solved after one step. An...
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 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...
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...
CK-12 Foundation
Fraction Ordering with Lowest Common Denominators: Test Your Strength
Young mathematicians use a bell and hammer to see how high or low the puck goes. Then, they order the fractional values to demonstrate the greatest to lowest hit. Students then respond to several questions that require them to use...
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.
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...
Illustrative Mathematics
Multiples and Common Multiples
Learners are asked to find multiples and common multiples of two numbers. They must take their findings and find a pattern between the numbers and explain their reasoning. Use this resource with The Florist Shop activity in this series...
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.
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 learning exercise. Instructions for this learning exercise include an explanation of both guess and check as...
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....