Operations and Rational Numbers (Fractions) Chapter 3 Page 119 Operations and Rational Numbers (Fractions) You make use your calculator
or Lesson 3.1 Page 123 Writing fractions as decimals divide Write 7/8 as a decimal 0.875 or . 875
Write each fraction as a decimal 1a. 4/5 1b. 3/16 .8 .1875
1/6 = .166666666...... = .16 Decimal .35353535353 12.688888888 5.714285714285 and Bar Notation .35 12.68 5.714285
5/12 = .4166666.. = .416 -2/11 = - .1818.. = - .18 - 5/6 = 7/9 = -.83 .7
Page 124 Study Concept Summary Chart It is helpful to memorize these fraction-decimals equivalents 1/2 = .5 1/3 = .3 1/4 = .25 1/5 = .2 1/10 = .1 1/100 = .01 2/3 = .6 3/4 = .75 2/5 = .40 3/5 = .6 4/5 = .80 5/6 = .83
< > = Page 125 Compare fractions and decimals Example 4 STUDY! Draw a number line if needed. The number on the right is larger 1/4 .2 < > = Change the fraction to a decimal to make the sentence true 1/4 = .25 .25 is greater than .20 so 1/4 > .2
- 5/8 -6/9 change to decimal graph number line if needed
Page 125 Try Guided Practice 4b. -7/15 -5/12 < > =
Questions?
Assignment Pages 126 - 127 write problem and answer Problems 1- 6, 8 - 13, 16 - 27, 30 - 37, 41 - 46,48 - 51 Page 129 65 - 68
Pages 126 - 127 answers for even problems 2. .3125 4. .625 6. -.7 8. > 10. < 12. -.61 16. .375 18. -.32 20. .8 22. -.125 24. .27 26. -.45
42. = 44. > 46. < Page 127 answers to even problems 30. = 30. = 32. < 34. > 36. > 42. = 44. > 46. < 48. -.29 - 2/7 -3/11 50.
6 1/6 = 4 2/3 = Lesson 3.2 Page 130 Rational Numbers Example 1 Write rational number as a fraction (mix number to improper fraction) 6 1/6 = 4 2/3 =
Page 131 Write .64 as a fraction (Look and count decimals) Reduce
Always put a Repeating Decimal over 9 when changing to a fractions
Always put a repeating decimal over 9 Then reduce
Pages 132 - 133 1 - 3 4 - 6 8 - 10 11 - 20 23 - 28 37 - 42 43 - 48
Monday we reviewed how to write inequalities for rational numbers
Page 126 8 9 10 11 12 13
Page 132 1 2 3 4 5 6