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converting and Comparing Fractions, Decimals, and %’s

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Presentation on theme: "converting and Comparing Fractions, Decimals, and %’s"— Presentation transcript:

1 converting and Comparing Fractions, Decimals, and %’s
Today’s lesson . . . What: converting and Comparing Fractions, Decimals, and %’s Why: To convert between fractions and decimals; and to compare fractions, decimals, and percentages.

2 Think about decimal language!
Converting Decimals to Fractions: Think about decimal language! Read it, Write it, Reduce it! Convert the following decimal #’s into fractions. Remember, if you can say the decimal #’s in your head (using decimal language)– you can write the decimal as a fraction! READ IT, WRITE IT, REDUCE IT! 1. 0.05 2. 0.4 3. 0.020

3 Read it, Write it, Reduce it!
Continued: Read it, Write it, Reduce it! 4. 4.03 5. 0.002 6. 5.005 How do you change a fraction into a decimal?? Video

4 “Take the top #, divide by the bottom #!”
Converting Fractions to Decimals: 5 8 GuIDED PRACTICE: 1. 1/8 2. 1/3

5 “Take the top #, divide by the bottom #!”
Your turn: 1. 5/6 2. 3/5

6 Decimal Fraction Percent
Your TURN: Decimal Fraction Percent .8 2. 1/5 3. 9.06 4. 0.2%

7 STRATEGY: Convert everything into decimals first!
Comparing Fractions, Decimals, and %’s: STRATEGY: Convert everything into decimals first! Let’s practice COMPARING a MIXTURE of fractions, decimals, and %’s at the same time. Remember, CONVERT TO DECIMALS FIRST!!!! Guided practice: Place a “greater-than” (>), “less-than” (<), or “equal” (=) sign in the blanks: 0.023 _____ ) 35% _____ ) 2/5 _____ 40% 4) % _____ ¼ ) _____ 5% ) 0.75% _____ 0.75

8 Your turn: Place a “greater-than” (>),“less-than” (<), or “equal” (=) sign in the blanks: 4.5 _____ 45% ) 15% _____ ) 3/8 _____ 0.4 4) % _____ ) 20% _____ 1/ ) _____ 450%

9 END OF LESSON Next slides are student copies of the notes for this lesson. These notes were handed out in class and filled-in as the lesson progressed. NOTE: The last slides in any lesson slideshow (entitled “Practice Work”) represent the homework assigned for that day.

10 Think about decimal language!
NOTES DATE: ______/_______/_______ What: converting and Comparing Fractions, Decimals, and %’s Why: To convert between fractions and decimals, and to compare fractions, decimals, and percentages. NAME: Converting Decimals to Fractions: Think about decimal language! Read it, Write it, Reduce it! EXAMPLES: Convert the following decimal #’s into fractions. Remember, if you can say the decimal #’s in your head (using decimal language)– you can write the decimal as a fraction! READ IT, WRITE IT, REDUCE IT! 1. 0.05 2. 0.4 3. 0.020 4. 4.03 5. 0.002 6. 5.005

11 “Take the top #, divide by the bottom #!”
Converting Fractions to Decimals: 5 8 GuIDED PRACTICE: Convert the following fractions into decimals. 1. 1/8 2. 1/3 Your Turn: 1. 5/6 2. 3/5

12 Decimal Fraction Percent
Your TURN: Decimal Fraction Percent .8 2. 1/5 3. 9.06 4. 0.2%

13 STRATEGY: Convert everything into decimals first!
Comparing Fractions, Decimals, and %’s: STRATEGY: Convert everything into decimals first! Let’s practice COMPARING a MIXTURE of fractions, decimals, and %’s at the same time. Remember, CONVERT TO DECIMALS FIRST!!!! Guided practice: Place a “greater-than” (>), “less-than” (<), or “equal” (=) sign in the blanks: 0.023 _____ ) % _____ ) 2/5 _____ 40% 4) % _____ ¼ ) _____ 5% ) % _____ 0.75 Your turn: Place a “greater-than” (>),“less-than” (<), or “equal” (=) sign in the blanks: 4.5 _____ 45% ) % _____ ) 3/8 _____ 0.4 4) % _____ ) 20% _____ 1/ ) _____ 450%

14 PRACTICE WORK Decimal Fraction Percent
DATE: ______/_______/_______ NAME:__________________________ “Converting fractions, decimals, & percentages” Fill in the missing parts of the below table: Decimal Fraction Percent 2. 7/8 45% 5. 2/3 6 . 525% 3/7 8. 6% 0.002 10. 2.5%

15 PRACTICE WORK “Comparing and Ordering rational numbers”
DATE: ______/_______/_______ NAME:__________________________ “Comparing and Ordering rational numbers” Place a “greater-than” (>), “less-than” (<), or “equal” (=) sign in the blanks: 0.8 _____ ) 2% _____ 0.3% ) 3/4 _____ 7.5% 12% _____ ) % _____ 5/ ) % _____ 1/8 Multiple Choice: 7) Which of the following is equal to 3/8 ? A) B) C) % D) % 8) Which of the following is equal to 50%? A) B) 7/ C) / D)


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