course 2 3-7 fractions and decimals *remember if you want to retake your math test, retakes are...

Course 2

3-7 Fractions and Decimals

*Remember if you want to retake your math test, retakes are TODAY after school.

Entry Task

1.Take out the pink worksheet from Friday.

2.Complete the other side of the worksheet.

Today’s Plan:-Warm Up & Correct Homework-Equivalent Fraction Activity-Fractions and Decimals

11/08/10 Equivalent Fractions & Decimals

Learning Target:

-I can identify, write, and convert between equivalent fractions and decimals.

Course 2




Learning Target:


Equivalent Fraction Mix and Match Game

*Remember if you want to retake your math test, retakes are TODAY after school.

Course 2


Write the fractions and decimal represented by models 1, 2,and 3. Each grid has 100 squares.



Learning Target:


Course 2


How do you convert a fraction to a decimal?

To convert a fraction to a decimal, divide the numerator by the denominator!

= 1 ÷ 8

0.125

18



Learning Target:


Write each fraction as a decimal. Round to the nearest hundredth, if necessary.

Additional Example 1: Writing Fractions as Decimals

Course 2

2-10 Equivalent Fractions and Decimals

A. 14

5.000

B. 95 C. 5

3

314 = 0.25 9

5= 1.8

1

– 3

20

.6

– 1820

– 18

6

20– 18

2

53 ≈ 1.67

6

Course 2


The decimals 0.75 and 1.2 in Example 1 are terminating decimals because the decimals comes to an end. The decimal 0.333…is a repeating decimal because the decimal repeats a pattern forever. You can also write a repeating decimal with a bar over the repeating part.

0.333… = 0.3

0.8333… = 0.83

0.727272… = 0.72

Write each fraction as a decimal.

Use Mental Math to Write Fractions as Decimals

Course 2


A.

4 5

4 5

x 2 2

= 8 10

= 0.8

Multiply to get a power of ten in the denominator.

B.

37 50

37 50

x 2 2

= 74 100

= 0.74



Course 2


A.

3 5

3 5

x 2 2

= 6 10

= 0.6


B.

18 25

18 25

x 4 4

= 72 100

= 0.72


Write each decimal as a fraction in simplest form.

Additional Example 3: Writing Decimals as Fractions

Course 2


A. 0.018 B. 1.55

0.018 = 181,000 1.55 =

155100

=18 ÷ 2

1,000 ÷ 2=155 ÷ 5

100 ÷ 5

=3120

or 1 1120=

9500

You read the decimal 0.018 as “eighteen thousandths.”

Reading Math

Check It Out: Example 3

Insert Lesson Title Here

Course 2



A. 0.015 B. 1.30

0.015 = 151,000 1.30 =130

100

= 15 ÷ 51,000 ÷ 5

= 130 ÷ 10100 ÷ 10

= 1310

or 1 310

= 3200


1.

3. 4.


5. 0.42

7. If your soccer team wins 21 out of 30 games,

what is your team’s winning rate?

2.6253.2

Insert Lesson Title Here

2150

69 8

Course 2


165 2.

218

6. 8.625

0.70

710

1120 0.550.7

5 8

or 8

Course 2


Assignment:

Page 172 #1-4, 10-17, 26

*Remember if you want to retake your math test, retakes are Today after school.



Learning Target:


course 2 3-7 fractions and decimals *remember if you want to retake your math test, retakes are...

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