Curated OER
Fractions Lesson 4
As this slide show explains, simplifying a fraction is very similar to finding an equivalent fraction. The process to simplify fractions is fully demonstrated and clearly explained, 15 practice problems are included.
Illustrative Mathematics
The Florist Shop
A real-world approach to common multiples asks learners to find different groups of flowers based on their multiples. Useable as a class activity or independent exercise, they will have to organize their thoughts to explain the totals of...
Curated OER
Fractions
In this LCD worksheet, students find the lowest common denominator in fraction problems that are also division problems. Students complete 3 problems.
Curated OER
Common Multiples
Students explore the concept of common multiples. In this common multiple instructional activity, students find the lowest common multiple of two numbers.
Curated OER
The 3 R's of Common Denominators
Third graders are shown an alternative method of determining the lowest common denominator of two or more unequal denominators. They complete a worksheet.
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...
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...
Curated OER
Lowest Common Multiple
For this lowest common multiple worksheet, students find the LCM of 2 digit numbers that don't exceed the number 20. Students complete 10 problems.
Curated OER
Least Common Multiple
For this least common multiple worksheet, students write numbers as a product of primes to determine the least common multiple. Explanations and examples are provided. This two-page worksheet contains ten problems.
Curated OER
Finding the LCM
Students explore the concept of finding the least common multiple of two numbers. In this least common multiple lesson, students find the least common multiple of two numbers.
Curated OER
Relating GCF and LCM for Grade Six
In this relating GCF and LCM for Grade Six worksheet, 6th graders answer ten multiple choice questions about factors and multiples, with answers available onscreen.
Curated OER
Reduction to Common Denominator
Young scholars compare two fractions with different denominators. In this fractions lesson, students find the least common multiple in order to find a common denominator with two fractions. Once they have a common denominator, they...
Curated OER
Playing the LCM Game
Students practice finding the least common multiple of two numbers. In this practice finding the least common multiple of two numbers instructional activity, students play head-to-head against their classmates. Students play a version...
Curated OER
Math Quiz: Least Common Multiple
In this math quiz: least common multiple worksheet, 6th graders find the LCM for 8 pairs of numbers, then answer 3 multiple choice word problems.
Curated OER
Word Problems Using the Lowest Common Multiple
In this word problems using the lowest common multiple instructional activity, 6th graders answer 10 multiple choice problems, with answers at the bottom on the screen.
Scholastic
Study Jams! Add & Subtract with Unlike Denominators
Your bakers might not realize that they need to know how to add with unlike denominators in order to figure out how much milk they need for a recipe. In order to make brownies and cookies, this lesson teaches how to find a common...
Curated OER
Subtracting Fractions
In this subtracting fractions activity, students solve 18 different problems that include subtracting various types of fractions. First, they find the least common multiple of both numbers. Then, students rewrite the fractions as...
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
Rational Equations and Proportions
In this rational equations worksheet, students solve and complete 11 various types of problems. First, they find a number that is the reciprocal of one described in each statement. Then, students solve for the variable in each expression.
Curated OER
Common denominators
In this common denominators worksheet, pupils find common denominators for pairs of fractions. Students find common denominators for 4 pairs of fractions.
Curated OER
Finding The LCM
Students find the least common multiple. In this LCM lesson, students find the multiples of two numbers. They view which multiples are common between the two numbers and then find the smallest.
Curated OER
Finding LCM
In this LCM worksheet, students read several paragraphs on finding LCM in various situations, then solve 25 problems.
Texas Instruments
Greatest Common Divisor and Least Common Multiple
Students solve problems using the GCD and LCM. In this algebra instructional activity, students factor and simplify equations using the greatest common and least common factors and multiples. They factor integers in pairs.
Math Mammoth
Add and Subtract Rational Expressions With Unlike Denominators
The class solves 19 problems involving rational expressions. They find the least common denominator of fractions, make fractions equivalent and then add or subtract fractions containing rational expressions.