Section 3.3 Addition and Subtraction of Unlike Fractions 179 69. Which of the following fractions has the greatest value? 70. Which of the following fractions has the least value? 1 6 , 2 3 1 4 , , 7 8 , 2 15 5 6 , , 2 9 1 2 For Exercises 71–76, rank the fractions from least to greatest. (See Example 7.) 71. 72. 73. 74. 75. 76. 77. A patient had three cuts that needed stitches. A nurse recorded the lengths of the cuts. Where did the patient have the longest cut? Where did the patient have the shortest cut? 78 upper right arm 3/4 in. Right hand 11 16 in. above left eye in. 5 7 , 11 21 , 18 35 4 3 , 13 12 , 17 15 2 5 , 3 10 , 5 6 5 16 , 3 8 , 1 4 5 12 , 3 8 , 2 3 7 8 , 2 3 , 3 4 78. Three screws have lengths equal to in., in., and in.Which screw is the longest? Which is the shortest? 79. Susan buys lb of smoked turkey, lb 80. For a party, Aman had lb of cheddar cheese, lb of ham, and lb of roast beef.Which of Swiss cheese, and lb of pepper jack cheese. type of meat did she buy in the greatest Which type of cheese is in the least amount? Which amount? Which type did she buy in the type is in the greatest amount? least amount? Expanding Your Skills 81. Which of the following fractions is between 82. Which of the following fractions is between and ? and ? Identify all that apply. Identify all that apply. a. b. c. a. b. c. 2 5 4 5 2 3 1 8 2 3 5 12 56 1 4 11 15 1 3 4 5 5 8 7 8 3 4 3 5 2 3 11 16 5 8 3 4 Addition and Subtraction of Unlike Fractions Section 3.3 1. Addition and Subtraction of Unlike Fractions Two fractions are unlike fractions if they have different denominators. In this section, we will use the least common denominator of two or more fractions to help us add and subtract unlike fractions. The first step in adding or subtracting unlike fractions is to identify the LCD. Then we change the unlike fractions to like fractions having the LCD as the denominator. Concepts 1. Addition and Subtraction of Unlike Fractions 2. Order of Operations 3. Applications Involving Unlike Fractions
miller_basic_college_math_3e_ch1_3
To see the actual publication please follow the link above