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### Number Sense Series: Fractions 2

In Part 1 you learned a lot about equivalent fractions — what they mean and two ways to find them. It turns out there is a third way to find equivalent fractions, and that is the way that Einstein did. It’s the way all the world’s best mathematicians and scientists find equivalent fractions. It uses multiplication of fractions, and you are ready for it!

Introduction
Equivalent Fractions, Part 2
Practice 1: Reducing Fractions
Practice 2: Equivalent Fractions – The Numbers get Bigger
Practice 3: Reducing Fractions – The Numbers get Smaller
Practice 4: Explain each Step in Reducing this Fraction
Practice 5: Reducing Fractions to Lowest Form
Practice 6: Reduced Form or Not?
3.    Multiplying Fractions: Part 2
Practice 7: Multiply Fractions the way Einstein would have
Magic Ones – Very Useful for Work with Fractions
Practice 8: Magic Ones
Practice 9: Magic Ones
Practice 10: Magic Ones
4.     Addition and Subtraction of Fractions
Practice 11: Adding Fractions, Using our Fraction Pieces
Practice 12: First Addition of Fractions with Different Units/Labels
Practice 13: First Addition of Fractions Explain
The Algebraic Form of Addition of Fractions
Practice 14: Using Algebra to Add Fractions
Finding Equivalent Fractions with Algebra
How to Find Common Denominators
Practice 15: Adding and Subtracting Fractions
5.    Division of Fractions
Practice 16: One Meaning of Division
Activity 1: One Meaning of Division
Practice 17: Division and Number Lines
The Algebraic Way to Divide Fractions
Practice 18: Division of Fractions Practice