Warm Up: All of the factors of 48 Are you here? Warm Up: All of the factors of 48 The prime factorization for 48 and 72 GCF(48, 72) LCM(48, 72) Explain why “2 is the oddest prime” is a funny statement.
Agenda Go over warm up Exploration 5.8 and 5.9
1, 2, 4, 8, 16, 3, 6, 12, 24, 48 48 = 24 • 3 72 = 23 • 32 GCF(48, 72) = 23 • 3 = 24 LCM(48, 72) = 24 • 32 = 144 = 48 • 3 = 72 • 2 = 24 • 6
Word Problem Example Tara can run around the track in 5 minutes. Todd can run the same distance in 6 minutes, and Tony can do it in 8 minutes. If they start at the same time, when will they next meet at the starting line? (Find the LCM of 5, 6, and 8) Answer: 120 minutes or 2 hours
Explorations Exploration 5.8 Exploration 5.9 Part 1: #1 - 5, 7 Pay extra attention to answering #3: “if [blank] = 1, then sketch a/b” Pay extra attention to answering #5: “if [blank] = a b/c, then sketch 1” Exploration 5.9 Part 1: #1 - 3 (divide the indicated shape *differently*), 4 - 7 (skip 5c), Part 2 #1, 2; Part 3 # 1