Common Denominators Teacher Resources
Find Common Denominators educational ideas and activities
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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 glance. Fraction games and printable game pieces available.
3rd - 5th Math 159 Views 226 Downloads CCSS: Adaptable
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 lowest terms.
3rd - 5th Math 6 Views 11 Downloads CCSS: Adaptable
Add and Subtract With Like Denominators - Problem Solving 5.2
Help Jared, a budding DJ, edit his exercise CD. Learners will add and subtract fractions with like denominators, solving five short word problems. There's a space to show their work, but no answers are given.
3rd - 4th Math 13 Views 170 Downloads CCSS: Adaptable
Finding Common Denominators to Subtract
Subtracting fractions with unlike denominators can be overwhelming, but in this task, 5th graders work systematically to break down the procedure through three questions. The first two questions ask for pictures to be drawn along with evaluating the subtraction sentences to illustrate why finding a common denominator is important.
5th Math 17 Views 25 Downloads CCSS: Designed
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 solution.
5th Math 23 Views 32 Downloads CCSS: Designed
Adding and Subtracting Mixed Numbers
Fourth and fifth graders add and subtract mixed numbers and write fractions in their simplest form. They complete various online activities involving mixed numbers and fractions and observe a teacher demonstration on adding and subtracting mixed numbers.
4th - 5th Math 53 Views 340 Downloads CCSS: Designed
Sweet Fraction Bars
Make sense of decomposing fractions by adding and subtracting parts of a whole. Fourth graders solve story problems by using ten-frames, number lines, or even candy bars that can be broken into pieces. Using each manipulative as a learning tool is a great way for pupils to visualize the decomposition of a fraction.
3rd - 5th Math 132 Views 242 Downloads CCSS: Designed
Add and Subtract Proper Fractions and Mixed Numbers
Use these three activities to explore addition and subtraction of mixed numbers, proper fractions, and whole numbers with like denominators. Young mathematicians predict answers, work with partners, and share their thinking, while making connections between pattern block models and numbers.
3rd - 5th Math 12 Views 19 Downloads CCSS: Designed
Add and Subtract Fractions with Like Denominators: 2 (Word Problems)
For this fraction learning exercise, fourth and fifth graders solve six word problems, all having to do with adding or subtracting fractions with like denominators. This learning exercise can be adapted to the Common Core standards in math.
4th - 5th Math 36 Views 265 Downloads CCSS: Adaptable
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 excellent way to review your fractions lesson.
3rd - 4th Math 21 Views 35 Downloads CCSS: Designed
How Do You Find the Least Common Denominator of Two Rational Expressions?
Adding fractions that are in rational expression form? Do they have a common denominator? No? Well, then the least common denominator needs to be found. How is the least common denominator of rational expression found? Watch this video and learn just how it's done.
2 mins 8th - 11th Math 3 Views 3 Downloads
Exploring Adding Fractions with Like Denominators
This is a great activity for those just learning how to add fractions with like denominators. Pie graphs make it easy to see the fractions in a different light before learners see the problems written out purely in fractions. There are 15 questions on this beginning activity.
4th - 5th Math 6 Views 191 Downloads CCSS: Adaptable
Subtract Mixed Numbers w/Like Denominators (B)
Sometimes renaming the first mixed number in a subtraction problem makes it much easier to solve the rest of the problem! Learners solve seven problems, and the second page details all of the necessary steps to reach the conclusion.
4th - 6th Math 4 Views 62 Downloads CCSS: Adaptable
Subtract Mixed Numbers w/Like Denominators (H)
Looking to give your upper elementary schoolers some quick practice subtracting mixed numbers? Give each learner a copy of this sheet, and set the timer! There are 18 problems shown, and the second page contains the answers.
4th - 6th Math 7 Views 77 Downloads CCSS: Adaptable
Adding Fractions With Like Denominators
Learners 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 problems on the board for assessment.
4th - 5th Math 28 Views 96 Downloads
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 to use when comparing fractions that have like denominators, and also when comparing fractions with like numerators.
4th - 5th Math 40 Views 97 Downloads
Introducing the Concept: Adding and Subtracting Fractions with Like Denominators
Young mathematicians work with their teacher using the overhead or interactive board to learn to add and subtract fractions with like denominators. Kinesthetic learning comes into play as they stand in groups to learn how to add and subtract fractions.
4th - 5th Math 21 Views 221 Downloads CCSS: Adaptable
Adding Fractions with Like Denominators
Assist your students in understanding how to add fractions with like denominators by showing them this presentation. Sal adds 3/15 to 7/15 and then simplifies his answer. He uses drawings and multiple colors to show the actual process.
3 mins 5th - 7th Math 4 Views 17 Downloads