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
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 instructional activity, students add a total of 14 problems, using mixed numbers with like denominators. An example problem appears at the top of the instructional activity.
Curated OER
Add and Subtract Fractions with Like Denominators - CA Standards Worksheet
In this fraction worksheet, 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.
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...
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...
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
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....
PBS
Working with Common Denominators: Activities and Supplemental Materials
Enjoy these straightforward and simple worksheet 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
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
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 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.
Curated OER
Fraction Fun
Learners solve 22 problems in which simple fractions with like denominators are added, subtracted and compared. Good practice for your third and fourth graders!
Curated OER
Fraction - Subtracting Unlike Denominators
These presentations by Monica Yuskaitis are particularly good. In this one, she shows viewers how to deal with subtracting fractions that have unlike denominator, no small task! This is a tricky process, and this PowerPoint takes young...