This lesson presents strategies for adding mixed numbers with like denominators. [Developmental Math playlist: Lesson 71 of 196]

This lesson presents word problems that require adding mixed numbers. [Developmental Math playlist: Lesson 73 of 196]

This lesson shows how to add mixed numbers that have different denominators.[Developmental Math playlist: Lesson 72 of 196]

This lesson reviews how to change an improper fraction to a mixed number. [Developmental Math playlist: Lesson 49 of 196]

This lesson shows how it is necessary to convert mixed numbers into proper fractions in order to divide them by multiplying by the reciprocal of the divisor. [Developmental Math playlist: Lesson 64 of 196]

This lesson builds on the previous lessons and demonstrates dividing mixed numbers and fractions and writing the answer as a mixed number. [Developmental Math playlist: Lesson 65 of 196]

This lesson reviews how to multiply whole numbers and fractions, by first writing the whole number as a fraction. [Developmental Math playlist: Lesson 60 of 196]

This lesson shows how to find the reciprocal of mixed numbers by converting it to a proper fraction first. [Developmental Math playlist: Lesson 62 of 196]

This lesson discusses how to subtract mixed numbers, including the need for the fractions to have similar denominators. [Developmental Math playlist: Lesson 75 of 196]

This lesson discusses how to subtract mixed numbers, including the need for the fractions to have similar denominators. [Developmental Math playlist: Lesson 76 of 196]

In this 40-day module, students build on their Grade 3 work with unit fractions as they explore fraction equivalence and extend this understanding to mixed numbers.  This leads to the comparison of fractions and mixed numbers and the representation of both in a variety of models.  Benchmark fractions play an important part in students’ ability to generalize and reason about relative fraction and mixed number sizes.  Students then have the opportunity to apply what they know to be true for whole number operations to the new concepts of fraction and mixed number operations.