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3-1. Rational Numbers. Pre-Algebra. Warm Up. Problem of the Day. Lesson Presentation. 3-1. Rational Numbers. Pre-Algebra. Warm Up Divide. 24. 12. 1. 36  3 2. 144  6. 4. 3. 3. 68  17 4. 345  115. 16. 5. 1024  64. Problem of the Day

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  1. 3-1 Rational Numbers Pre-Algebra Warm Up Problem of the Day Lesson Presentation

  2. 3-1 Rational Numbers Pre-Algebra Warm Up Divide. 24 12 1. 36  3 2. 144  6 4 3 3. 68  17 4. 345  115 16 5. 1024  64

  3. Problem of the Day An ice cream parlor has 6 flavors of ice cream. A dish with two scoops can have any two flavors, including the same flavor twice. How many different double-scoop combinations are possible? 21

  4. Learn to write rational numbers in equivalent forms. Vocabulary rational number relatively prime

  5. n Numerator d Denominator A rational numberis any number that can be written as a fraction, d≠0. Decimals that terminate or repeat are rational numbers.

  6. The goal of simplifying fractions is to make the numerator and the denominator relatively prime. Relatively prime numbers have no common factors other than 1.

  7. Simplify. GCF = ? 5

  8. Simplify. GCF = ? 16

  9. Simplify. 1 GCF = ? These two numbers are relatively prime!!!

  10. Simplify. GCF = ? 6

  11. Simplify. GCF = ? 17

  12. Write the decimal as a fraction in simplest form. 2 GCF = ? –0.8 Tenths

  13. Write the decimal as a fraction in simplest form. 1 GCF = ? 5.37 5 and 37 are relatively prime!! Hundredths

  14. Write the decimal as a fraction in simplest form. 0.622 2 GCF = ? Thousandeths

  15. Write the decimal as a fraction in simplest form. 8.75 25 GCF = ? Hundredths

  16. Write the fraction as a decimal. 11 9 = 1.2 1.222222…, a repeating decimal

  17. Write the fraction as a decimal. 7 20 = 0.35 0.35, a terminating decimal

  18. Write the fraction as a decimal. 15 11 = 1.36 1.363636…, a repeating decimal

  19. 3 7 5 7 5 8 27100 – Lesson Quiz: Part 1 Simplify. 15 21 18 42 2. 1. Write each decimal as a fraction in simplest form. 4. –0.625 3. 0.27 13 6 5. Write as a decimal 2.16

  20. Lesson Quiz: Part 2 Tommy had 13 hits in 40 at bats for his baseball team. What is his batting average? (Batting average is the number of hits divided by the number of at bats, expressed as a decimal.) 6. 0.325

  21. Homework Pg 115; 1 – 49 odd 58 – 63 all

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