... common multiple of and 15? A) 30 B) 60 C) D) 28) D) 15 Find the greatest common factor of and 15 A) 90 B) C) 15 D) Find the greatest common factor of 20 and 28 A) B) C) D) 140 29) 30) Find the least ... A) B) 12 C) 24 D) 120 Find the greatest common factor of 6, 9, and 10 A) B) C) D) 90 Which is the least common multiple of and 12? A) B) 48 C) 12 Find the greatest common factor of 42, 84, and ... Which is the least common multiple of 12, 18, and 30? A) 180 B) C) 6,480 D) 1,620 Find the greatest common factor of 14, 21, and 35 A) B) 210 C) D) 10,290 Which of the following list of fractions...