Math 10031 Chapter 1, Sec. 1.9 Fractions and Percents

Math 10031 Chapter 1, Sec. 1.9 Fractions and Percents

Supplemental Problems

Convert each improper fraction to a mixed number.

1. 2. 3. 4.

5. 6. 7. 8.

Convert each mixed number to an improper fraction.

9. 10. 11. 12.

14. 15. 16. 17.

Convert each percent to a fraction and reduce it , if possible.

18. 75 % 19. 36 % 20. 5 % 21. 15 %

22. 24 % 23. 5.6 % 24. 82 % 25. 2.5 %

Convert each percent to a decimal.

26. 60 % 27. 25 % 28. 33 % 29. 15 %

30. 4 % 31. 18% 32. 75 % 33. 120 %

Find the equivalence for decimals, percents, and fractions of the following numbers.

34. 0.45 % 35. 0.07 % 36. 1200 %

37. 1.6 38. 55.8 39. 0.003

40. 41. 42..

43. 44. 45.

46. 16.3 % 47. 1250 % 48.

49. 4.5 50. 0.02 51. %

Reduce each fraction if possible .

52. 53. 54.

55. 56. 57.

Add or subtract the fractions; reduce all results to the simplest form.

58. 59. 60.

61. 62. 63.

64. 65. 66.

Multiply , reduce results if possible.

67. 68. 69.

70. 71. 72.

Divide, reduce results if possible.

73. 74. 75.

76. 77. 78.

Perform the indicated operations, express answers in the simplest form.

79. 80. 81.

82. 83. 84.

85. 86.

The following diagram represents of a whole. Complete the figure to find the whole.

▲ ▲ ▲ ▲ ▲ ▲
▲ ▲ ▲

Some of the balls are taken from a box and 18 balls are left. This number 18 is two – thirds of the number that was originally in the box. How many balls were there in the box originally?

Tom ordered a pizza with twelve slices,with a third was cheese, a third was pepperoni, and a third was

sausage. If Tom eats a fourth of each third, what fraction of pizzadid he eat?

ANSWERS to Supplemental Problems Ch1, Sec.1.9

1. 2. 3. 4.

5. 6. 7. 8.

9. 10. 11. 12.

14. 15. 16. 17.

18. 19. 20. 21.

22. 23. 24. 25.

26. 0.60 27. 0. 25 28. 0.33 29. 0.15

30. 0.04 31. 0.18 32. 0.75 33. 1.20

34. 0.45 % =0.0045= 35. 0.07 % = 0.0007= 36. 1200 %=12=12

37. 1.6 = 160%= 38. 55.8 =0.558= 39. 0.003 =0.3%=

40. = 5.6%=5.6 41. =1.8=180% 42.. =0.7143=71.14%

43. = 0.375=37.5% 44. 45.

46. 16.3 % ==0.163 47. 1250 %=12.5= 48. =0.01=1%

49. 4.5= 450%= 50. 0.02 =2%= 51. %==0.0825