Download presentation

Presentation is loading. Please wait.

Published byEdwin Roome Modified over 3 years ago

1
N.S. 1.3: Converting Fractions, Decimals, & Percents Period Odds: 9/19/13 Period Evens: 9/20/13

2
Fractions to Decimals: To change a fraction into a decimal, we must divide the fraction. Example 1: What decimal is the same as 3/8? Big Note: “Top dog gets the house”

3
Example 2: What decimal is the same as 3/11?

4
Whiteboard CFU What decimal is equal to 2/7?

5
Answer:.29

6
Whiteboard CFU What decimal is equal to 5/7?

7
Answer: 0.71

8
Fractions to Percents: We can convert fractions into percents using two methods. Select the method that is most comfortable for you! But you need to be familiar with both!

9
Fractions to Percents: Method 1 Convert fraction to a decimal MULTIPLY that decimal by 100, which means you MOVE the decimal over two spaces.

10
Example: 3 = 0.375 8 Decimal to Percent= 37.5 %

11
Fractions to Percents: Method 2 Begin with the fraction… Example: 4/5= Step 1: Set the fraction equal to “x over 100” 4/5= x/100

12
Step 2: Cross-multiply the proportion, then solve for x. Whatever x equals will be your percent 4(100)= 5(x) 400= 5x 400/5= 5x/5 80=x Answer: 4/5= 80%

13
Percents to Decimals and Fractions: Example: Convert 45% into a fraction and a decimal. Simplify fraction. PercentFractionDecimal

14
Whiteboard CFU 1. Change 8/15 into a percent

15
Answer: 53.33%

16
Whiteboard CFU Change 17/50 into a percent (use different method then the one used before)

17
Answer: 34%

18
Whiteboard CFU Convert 36% into a FRACTION and DECIMAL

19
Whiteboard CFU Convert 325% into a FRACTION and DECIMAL

20
NS 1.3 Homework Practice (Round to the nearest hundredths) Change each fraction to a decimal 1. 5/ 10= 2. 3/11= 3. 24/25= 4. 4/7= 5. 2/3= Change each fraction to a percent using “method 1”: 6. 4/5= 7. 6/12= 8. 3/7= 9. 2/9= 10. 5/7= Change each fraction to a percent using “method 2 11. 3/5= 12.20/25= 13. 7/13= 14.6/14 15.8/15=

Similar presentations

OK

Jeopardy Q 1 Q 6 Q 11 Q 16 Q 21 Q 2 Q 7 Q 12 Q 17 Q 22 Q 3 Q 8 Q 13

Jeopardy Q 1 Q 6 Q 11 Q 16 Q 21 Q 2 Q 7 Q 12 Q 17 Q 22 Q 3 Q 8 Q 13

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on producers consumers and decomposers clip Ppt on 60 years of indian parliament debate Ppt on latest technology in electronics and instrumentation Ppt on polytene chromosomes Ppt on index numbers excel Ppt on non agricultural activities youtube Administrative law ppt on rule of law Ppt on hotel industry in india Ppt on natural and artificial satellites wiki Sample ppt on business plan