Course 2

3-10Multiplying Fractions and Mixed Numbers

Do Now

What is of each of the following?

1. 24 2. 16

3. 30 4. 28

12 8

15

12

14

Hwk: p 33 1-18

Course 2

3-10Multiplying Fractions and Mixed Numbers

EQ: How do I multiply fractions and mixed numbers?

M7N1.c Add, subtract, multiply, and divide positive and negative rational numbers; M7N1.d Solve problems using rational numbers

Course 2

3-10Multiplying Fractions and Mixed Numbers

To multiply fractions, multiply the numerators to find the product’snumerator. Then multiply the denominators to find the product’sdenominator.

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

–12 · 34

91

= – = –9

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

· 831

3

= 18

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

· 413

5–

= 3 20

–

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

–16 · 14

41

= – = –4

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

· 961

6

= 19

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

· 813

7–

= 3 56

–

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

25

· 1 23

= 23

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

4 15

· 2 17

= 91

or 9

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

23 · 4 2

56

3= 88 or 291

3

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

35

· 2 13

= or 175

25

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

3 36

· 1 13

= 143

or 423

Course 2

3-10Multiplying Fractions and Mixed Numbers

Multiply. Write the answer in simplest form.

16 · 1 1

33

9= 38 or 4 2

9

Course 2

3-10Multiplying Fractions and Mixed Numbers

quiz

Course 2

3-10Multiplying Fractions and Mixed Numbers

Quiz

Multiply. Write each answer in simplest terms.

1. 18

· 56

2. 5 56

· 12

3. 5 110

·123

4. 316

· 4 23

78

3512

or 1112

2

17 2

12

or 8

548

Course 2

3-10Multiplying Fractions and Mixed Numbers

Lesson Quiz: Part II

Multiply. Write the answer in simplest terms.

5. A recipe for clam chowder calls for 2 14 pounds of

butter. If you prepare one-half of the recipe, how

much butter do you need?

118

pounds