Problem Recognition Exercises 199 Calculator Connections Topic: Adding and Subtracting Fractions and Mixed Numbers on a Calculator Expression Keystrokes Result 7 18 1 3 7 5 8 4 2 3 To convert the result to an improper fraction, press Calculator Exercises Add or subtract as indicated. 2_23 _| 24 2 98. 99. 100. 101. 102. 103. 104. 105. 5 14 17 23 24 2 47 68 7 11 21 2 10 33 21 3 28 4 31 42 32 7 18 14 2 27 29 68 7 92 31 44 14 33 14 75 9 50 23 42 17 24 71 _| 24 71 24 7 5 8 4 2 3 13 _| 18 13 18 7 18 1 3 ⎫⎪⎪⎪⎬⎪⎪⎪⎭ ⎫⎪⎪⎪⎬⎪⎪⎪⎭ Operations on Fractions and Mixed Numbers Perform the indicated operations. Check the reasonableness of your answers by estimating. 1. a. b. c. d. 2. a. b. c. d. 3. a. b. c. d. 1 3 1 3 1 3 4. a. b. c. d. 5. a. b. c. d. 2 3 2 3 6. a. b. c. d. 3 2 3 3 2 3 2 2 3 3 2 2 4 3 8 4 3 8 4 3 8 4 3 8 a4 1 3 b a2 5 6 a4 b a2 b 5 6 a4 b a2 b 5 6 a4 b a2 b 5 6 b 2 3 4 1 1 2 2 3 4 1 1 2 2 3 4 1 1 2 2 3 4 1 1 2 4 3 5 6 4 3 5 6 4 3 5 6 4 3 5 6 7 5 2 5 7 5 2 5 7 5 2 5 7 5 2 5 758 423 Problem Recognition Exercises
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