Chapter 4

9 ÷ 1/2 =

18

Reciprocal of 12/19

19/12

2/3 x 1_3/5 =

1_1/15

3_3/8 ÷ 2_1/4 =

1_1/2

1 ÷ 3/4 =

1_1/3

4_1/2 ÷ 2_7/10 =

1_2/3

2_1/10 ÷ 1_1/5 =

1_3/4

1/6 x 11 =

1_5/6

Mutliply: 15 x 1/8 =

1_7/8

Mrs. Young calls reciprocals...

"flippy floppy fractions"

(round each to zero, half, or one) 7/8 x 3/5 is about...

1 x 1/2 = 1/2

5/6 x 9/15 =

1/2

If the area of a closet is 9/20 square yards, and the width of the closet is 9/10 yards, what is the length of the closet? (Area = length x width)

1/2

1/7 x 1/7 =

1/49

Simplify 15/75

1/5

Mutliply: 2/9 x 1/2 =

1/9

8_1/5 x 1_1/4 =

10_1/4

Reciprocal of 6/11

11/6

10 ÷ 8/9 =

11_1/4

1/5 x 3 1/3 =

2/3

2/3 x 3_1/2 =

2_1/3

1_15/16 ÷ 7/8 =

2_3/14

9 x 1/3 =

3

What is the volume of a box that is 5 1/2 inches long, 3 1/2 inches wide, and 1/6 of an inch tall?

3 1/18

Reciprocal of 2/3

3/2

Simplify 75/125

3/5

Multiply: 1/8 x 5/9 =

5/72

How many glasses of lemonade can I pour if I have 5 Liters total and each cup fits 1/6 of a Liter?

30

What is the area of a yard that is 8 3/4 yards long and 4 1/5 yards wide?

36_3/4

1_3/8 x 2_1/2 =

3_7/16

1_1/9 x 3_2/5 =

3_7/9

3 ÷ 5/8 =

4 4/5

2 x 2/5 =

4/5

Simplify 40/90

4/9

Estimate (by rounding to nearest wholes): 3 7/8 x 10 1/10 is about...

40

Reciprocal of 90/45

45/90

Estimate: 1/3 of 16 is about... (change 16 to a friendlier number first)

5

Multiply: 1/2 x 5/7 =

5/14

5 /6 x 1/3 =

5/18

1/4 x 5/6 =

5/24

Reciprocal of 4/5

5/4

4_2/3 x 1_1/8 =

5_1/4

4 ÷ 7/9 =

5_1/7

4_3/4 ÷ 7/8 =

5_3/7

7_1/2 ÷ 1_1/4 =

6

Estimate: 3/8 x 17 is about... (change 17 to a friendlier number first)

6

2 ÷ 3_2/3 =

6/11

4 ÷ 7/12 =

6_6/7

3 ÷ 2/5 =

7_1/2

10 ÷ 1_1/4 =

8

2 ÷ 1/4 =

8

Multiply: 2/3 x 12 =

8

Karen ate 3/4 of the cake at the party (what a jerk). If there were 12 slices of cake total, how many did Karen eeat?

9

1_1/5 x 3/4 =

9/10

Reciprocal of 8/9

9/8

The best book series in the world is

Harry Potter

reciprocal

a fraction inverted (flipped upside down)

improper fraction

a fraction whose numerator is larger than the denominator

mixed number

a number made up of a whole number and a fraction

Mrs. Young's favorite color is

blue

When multiplying something by a unit fraction to convert units, you put the units you started with in the...

denominator

This chapter focuses on multiplication and division of...

fractions

The three steps to start a fraction division problem are...

keep, change, flip

When multiplying something by a unit fraction to convert units, you put the units you want to convert to in the...

numerator

Our school mascot is

the Dragons

quotient

the answer to a division problem

product

the answer to a multiplication problem