Decimal and Fraction

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Decimal and Fraction

  1. 1. 1. Write in your assignment book. 2. Solve this question on a white board or piece of paper. • I have 5 papers. I cut each paper into 5 pieces. How many pieces of paper do I have now? (Ben) 2. Write the fraction for 0.9 , 0.09 , and 0.99 3. When you are finished wait quietly for class to begin.
  2. 2. 1. Solve these two questions on a white board or piece of paper. • Zack had 20 apples. His friend Cody had 5 times as many apples. How many apples did Cody have? (Damiya) • There are 300 kids and three buses. How many kids will be on each bus? (Carson) 2. Write the fraction for 0.9 , 0.09 , and 0.99 3. When you are finished wait quietly for class to begin.
  3. 3. What fraction of the rectangle is green? What decimal part of the rectangle is green? 10 6 .6 They sound alike!!!
  4. 4. To write a decimal as a fraction, write the fraction as you would say the decimal. When you say the decimal you say the name of the place value of the last digit to the right. 2.12 tenths Hundredths Ones/whole • 2.45 •2.1 •0.8 •33.6 •1.74 and
  5. 5. CONVERTING DECIMALS TO FRACTIONS • To change a decimal to a fraction, use the number as the numerator and the place value of the last digit as the denominator Change 0.15 to a common fraction: • 0.15 is read as fifteen hundredths • It is written as 15/100
  6. 6. Say the decimal….Write it as a fraction • .5 • .65 • .22 • .2 • .85 Notice….when you change a decimal to a fraction the denominator is always 10, 100 5/10 65/100 22/100 2/10 85/100
  7. 7. Say the fraction….Write it as a decimal. • 2/10 • 93/100 • 1/100 • 1/10 • 3/100 Notice….when you change a fraction to a decimal, you write the number from the numerator so that it ends in the place value designated in the denominator. 0.2 0.93 0.01 0.1 0.03
  8. 8. How do you read the fraction 1/4? 1. One fourth 2. One quarter
  9. 9. One Quarter…
  10. 10. If a quarter is worth $0.25, how do you think ¼ is written as a decimal? ¼ = 0.25
  11. 11. If ½ a dollar is $0.50, how do you think ½ is written as a decimal? 1/2 = 0.5
  12. 12. If ¾ of a dollar is $0.75, how do you think ¾ is written as a decimal? ¾ = 0.75
  13. 13. How do you think 4/4 is written as a decimal? 4/4 = 1.00

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