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
Fraction Subtraction
In this fraction subtraction activity, 7th graders solve 10 different problems that include fractions and subtraction. First, they find the least common denominator in each if the denominators are not the same. Then, students subtract...
Khan Academy
Khan Academy: Common Denominators
In this exercise, students practice finding common denominators. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.