Curriculum / Math / 5th Grade / Unit 5: Multiplication and Division of Fractions / Lesson 15

Multiplication and Division of Fractions

Lesson 15

Math

Unit 5

5th Grade

Lesson 15 of 24

Objective

Multiply mixed numbers by mixed numbers.

Lesson Map

Topic A: Fractions as Division

Lesson

Relate equal shares of objects to division expressions and visual representations of fractions.

Standards

5.NF.B.3

Lesson

Write division expressions that represent fractions and vice versa.

Standards

5.NF.B.3

Lesson

Solve division problems when the quotient is a fraction or mixed number, including cases with larger values.

Standards

5.NF.B.3

Topic B: Multiplying a Fraction by a Whole Number

Lesson

Multiply a unit fraction by a whole number.

Standards

5.NF.B.4.A5.NF.B.6

Lesson

Multiply a non-unit fraction by a whole number.

Standards

5.NF.B.4.A5.NF.B.6

Lesson

Relate multiplication of a fraction by a whole number to multiplication of a whole number by a fraction and use this to develop a general method to multiply any fraction by any whole number (or vice versa).

Standards

5.NF.B.4.A5.NF.B.5

Lesson

Solve real-world problems involving multiplication of fractions and whole numbers and create real-world contexts for expressions involving multiplication of fractions and whole numbers.

Standards

5.NF.B.45.NF.B.65.OA.A.2

Topic C: Multiplying a Fraction by a Fraction

Lesson

Multiply a fraction by a fraction without subdivisions using tape diagrams and number lines.

Standards

5.NF.B.45.NF.B.55.NF.B.6

Lesson

Multiply a fraction by a fraction with subdivisions using tape diagrams and number lines.

Standards

5.NF.B.45.NF.B.55.NF.B.6

Lesson

Multiply a fraction by a fraction with more complicated subdivisions using an area model.

Standards

5.NF.B.45.NF.B.55.NF.B.6

Lesson

Develop a general method to multiply a fraction by a fraction.

Standards

5.NF.B.45.NF.B.55.NF.B.6

Lesson

Solve real-world problems involving multiplication of fractions with fractions and create real-world contexts for expressions involving multiplication of fractions with fractions.

Standards

5.NF.B.45.NF.B.65.OA.A.2

Topic D: Multiplying with Mixed Numbers

Lesson

Multiply mixed numbers by whole numbers.

Standards

5.NF.B.45.NF.B.55.NF.B.6

Lesson

Multiply mixed numbers by fractions.

Standards

5.NF.B.45.NF.B.55.NF.B.6

Lesson

Multiply mixed numbers by mixed numbers.

Standards

5.NF.B.45.NF.B.55.NF.B.6

Lesson

Develop a general method to multiply with mixed numbers.

Standards

5.NF.B.45.NF.B.55.NF.B.6

Lesson

Solve real-world problems involving multiplication with mixed numbers and create real-world contexts for expressions involving multiplication with mixed numbers.

Standards

5.NF.B.45.NF.B.65.OA.A.2

Lesson

Interpret multiplication as scaling.

Standards

5.NF.B.55.NF.B.5.A5.NF.B.5.B