Objective 4: Add and Subtract Mixed Numbers Using Improper Fractions Add or subtract by changing the mixed numbers to improper fractions. 55) 3 1 2 2 1 4 56) 5 1 3 2 5 6 57) 7 11 12 2 5 6 58) 5 4 5 3 7 10 59) 2 2 5 1 2 3 60) 3 3 7 2 3 4 61) 2 5 6 1 1 4 62) 4 3 5 3 1 2 63) 2 1 6 1 3 5 64) 4 1 7 3 1 4 65) Do you prefer to add and subtract mixed numbers by leaving them as mixed numbers or by changing them to improper fractions? Why? 66) If we add and subtract mixed numbers by fi rst changing them to improper fractions, will we have to do any regrouping? For Exercises 67–70, fi nd the missing length. 67) 1 2 ? 8 in. 3 4 10 in. 68) 5 6 ? 4 cm 1 3 6 cm 69) ? 1 3 11 m 3 4 15 m 70) 1 2 1 ft 3 4 ft ? 3 ft A healthcare professional monitors the weight of a patient who has been retaining fl uids due to an illness. Use the table below for Exercises 71–74. Day and Time Weight in Pounds Day 1, 8:00 A.M. 141 2 3 Day 2, 9:00 A.M. 142 1 2 Day 3, 8:00 A.M. 143 3 4 Day 4, 10:00 A.M. 144 1 2 Day 5, 8:00 A.M. 142 3 4 Day 6, 10:00 A.M. 141 1 4 Day 7, 9:00 A.M. 139 1 3 71) How much weight did the patient gain from Day 1 to Day 4? 72) How much weight did the patient lose from Day 4 to Day 7? 73) From Day 3 to Day 4, did the patient gain or lose weight and how much? 74) Over the 7-day monitoring period, did the patient gain or lose weight and how much? Solve each problem. 75) For breakfast, Julian drank 2 1 2 cups of water, 1 2 3 cups of juice, and 3 4 cup of milk. How much liquid did Julian consume for breakfast? www.mhhe.com/messersmith SECTION 4.5 Adding and Subtracting Mixed Numbers 265
messersmith_power_basic_college_1e_ch4_7_10
To see the actual publication please follow the link above