Add Fractions with Different Denominators
Use equal-sized parts before adding fractions of the same whole.
Open lesson 1Measure with Fraction Operations
Join, remove, select, and count fraction lengths using consistent units.
Before you begin
- Create equivalent fractions.
- Add and subtract like denominators and multiply small whole numbers.
Choose by skill rather than age alone. Read with an adult when useful, revisit a lesson, or explore another grade.
Follow the lesson sequence
Rename Before Subtracting
Subtract unlike fractions by finding a shared part size.
Open lesson 2Find a Fraction of a Fraction
Use a partitioned model to multiply two fractions.
Open lesson 3Count Unit-Fraction Pieces in a Whole Length
Divide a whole-number length by a unit fraction.
Open lesson 4Review and transfer
After the lessons, try 4 new review cases and a practical task. Each answer has an explanation and a link back to the related lesson.
Open the unit reviewGuest answers are temporary. Keep your own paper or document; this unit does not certify completion or record a school grade.