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Transparency 5. Click the mouse button or press the Space Bar to display the answers. Splash Screen. Example 5-3d. Objective. Compare and order fractions. Example 5-3d. Vocabulary. Least common denominator (LCD). The least common multiple (LCM) of the denominators. Lesson 5 Contents.

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  1. Transparency 5 Click the mouse button or press the Space Bar to display the answers.

  2. Splash Screen

  3. Example 5-3d Objective Compare and order fractions

  4. Example 5-3d Vocabulary Least common denominator (LCD) The least common multiple (LCM) of the denominators

  5. Lesson 5 Contents Example 1Compare Fractions Example 2Order Fractions

  6. Replace with < , > or = to make true. Example 5-1a Write comparison using a circle instead of the dot Use calculator to convert each fraction to a decimal  = 8 21 8 Convert to a decimal 0.381 Enter numerator of 8 Enter division sign  Enter denominator of 21 Enter equal sign = 1/2

  7. Replace with < , > or = to make true. Example 5-1a Convert to a decimal Enter numerator of 3  = 3 7 3 Enter division sign  Enter denominator of 7 0.381 0.492 Enter equal sign = Compare decimals by lining up the decimals vertically 1/2

  8. Replace with < , > or = to make true. Example 5-1a < Compare decimals beginning at the decimal since there are no whole numbers  = 3 7 3 The 3 is less than 4 so 0.381 is less than 0.492 0.381 Place the comparison symbol in the original problem 0.492 Circle answer! 1/2

  9. Replace with < , > or = to make true. Answer: Example 5-1b < 1/2

  10. Order the fractions and from least to greatest. Example 5-2a Write the fractions 0.667 Convert to a decimal 0.80 Numerator 2  denominator 3 Convert to a decimal Numerator 4  denominator 5 2/2

  11. Order the fractions and from least to greatest. Example 5-2a 0.667 Convert to a decimal 0.800 Numerator 8  denominator 15 Convert to a decimal 0.533 Numerator 3  denominator 5 0.600 2/2

  12. Order the fractions and from least to greatest. Example 5-2a Compare decimals beginning at the decimal since there are no whole numbers 0.667 5 is the smallest number so is the smallest fraction 0.800 6 is the next smallest number and there are 2 decimals to compare the next place value 0.533 0.600 2/2

  13. Order the fractions and from least to greatest. Example 5-2a The 0 is smaller than the 6 so is the next fraction 0.667 Then will be the next fraction 0.800 Only one fraction remains, so is the largest fraction 0.533 0.600 Answer: 2/2

  14. Order the fractions and from least to greatest. Answer: Example 5-2c 2/2

  15. End of Lesson 5 Assignment

  16. MULTIPLE-CHOICE TEST ITEMAccording to the table, how is most land in the United States used? Land Use in the United States Aas arable land Bas permanent pastures Cas forests and woodland DB and C are equal arable (cropland) permanent pastures forests and woodlands other Source: CIA World Fact Book Example 5-3a First, find the LCM of the denominators 3/3

  17. Land Use in the United States arable (cropland) permanent pastures forests and woodlands other Source: CIA World Fact Book Example 5-3a First, find the LCM of the denominators 100 4 10 50 2 2 2 2 2 50 2 5 5 25 5 25 5 5 Circle the greatest power of each number and multiply 2  2  5  5 = 100 Convert fractions to like denominators by proportions 3/3

  18. Land Use in the United States arable (cropland) permanent pastures forests and woodlands other Source: CIA World Fact Book Example 5-3b x x x How is most land in the United States used? Determine the largest numerator of like fractions 3/3

  19. Land Use in the United States arable (cropland) permanent pastures forests and woodlands other So, is the greatest fraction. Source: CIA World Fact Book Example 5-3c Aas arable land Bas permanent pastures Cas forests and woodland DB and C are equal Answer:C 3/3

  20. MULTIPLE-CHOICE TEST ITEM According to a survey data, what did most people say should be done with the length of the school year? How long should theschool year be? Alengthen the school year Bshorten the school year Ckeep the length the same Dcannot tell from the data lengthen the school year shorten theschool year keep the lengththe same Example 5-3d * Answer:A 3/3

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