Weds nov 16 2011
This presentation is the property of its rightful owner.
Sponsored Links
1 / 15

Weds, Nov. 16, 2011 PowerPoint PPT Presentation


  • 84 Views
  • Uploaded on
  • Presentation posted in: General

Bellwork : In a national study, 32 out of 100 students said they are bullied at school. Write this as a fraction Find the GCF of 32 and 100 Use the GCF to write as a fraction in simplest form. Weds, Nov. 16, 2011. 5.3. Notes & Practice Problems:

Download Presentation

Weds, Nov. 16, 2011

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Weds nov 16 2011

Bellwork:

In a national study, 32 out of 100 students said they are bullied at school.

Write this as a fraction

Find the GCF of 32 and 100

Use the GCF to write as a fraction in simplest form

Weds, Nov. 16, 2011

5.3

Notes & Practice Problems:

Converting between Fractions, Decimals & Percents

5.4

Homework: HW Slip – 6 problems


Essential question

Essential Question:

How are fractions, decimals and percents related to each other?

5.3


Weds nov 16 2011

Fraction

Equivalent Representations of Same Value

Decimal

Percent


Review fractions decimals

Review: Fractions & Decimals

  • A fraction can be written as a decimal bydividing the numerator by the denominator.

  • “Put the top in the box” and divide.

  • Ex:

    is the same as “3 divided by 8”

    • and 0.375 are equivalent

      (they have the same value)

0.375

3.000

-24

60

- 56

40

- 40

0

8

5.3


Repeating terminating decimals

Repeating & terminating decimals

  • Decimals whose digits end are called terminating decimals.

    • Ex: 0.375

  • Decimals that have a pattern in their digits that repeats forever are called repeating decimals.

    • Ex: When we write as a decimal, the three repeats indefinitely.

  • We use bar notation to show that a number pattern repeats indefinitely.

    • Ex: 0.333… is written as 0.

      and 0.121212… is written as 0.

0.333…

1.000

- 9

10

- 9

10

- 9

1

3

5.3


Quick check

Quick Check

1) has the same value as which decimal?

a) 0.60 b) 0.20 c) 0.80 d) 0.75

2) has the same value as which decimal?

a) 0.b) 0.30 c) 0.90 d) 0.

3) Which of the following is a terminating decimal?

a) 0. b) 0.30 c) 0. d) 0.


Fractions percents

Fractions & percents

A percent is a ratio that compares a number to 100.

57 out of 100 57%

12 out of 25

48%

5.3


Quick check1

Quick Check

1) 48 out of 100 is what percent?

a) 5% b) 0.48% c) 4.8% d) 48%

2) 32 out of 50 is what percent?

a) 32% b) 64% c) 0.32% d) 0.64%


Decimals percents

Decimals & percents

A decimal can be written as a percent by writing the number of hundredths followed by a percent sign (%).

0.62 62 hundredths 62%

0.05 5 hundredths 5%

0.375 37.5 hundredths 37.5%

5.3

Hundredths place


Quick check2

Quick Check

1) 0.73 has the same value as…

a) 7.3% b) 0.73% c) 73%

2) 3.4 has the same value as…

a) 340% b) 34% c) 3.4%


Fractions percents1

Fractions & percents

A percent can easily be written as a fraction.

84%

7%

250%

5.3


Quick check3

Quick Check

1) 46% has the same value as which fraction?

a) b) c) d)


Percents decimals

Percents & decimals

A percent can be written as a fraction with a denominator of 100. This shows the number of hundredths.

37% 37 hundredths 0.37

9% 9 hundredths 0.09

5.3


Quick check4

Quick Check

1) 27% has the same value as…

a) 0.27 b) 2.70 c) 27

2) 300% has the same value as…

a) 0.30 b) 3.00 c) 0.03


Homework

homework

5.4

Write as a decimal.

Write the resulting decimal as a percent.

Write 40% as a fraction in simplest form.

Write 2.75 as a percent.

Write 0.087 as a percent.

Write as a percent.


  • Login