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The least common multiple is the littlest multiple that two or more numbers have in common (e.g 12 for 2, 3, 4 and 6).

A. 12, 24, 36, 48, 60; 15, 30, 45, 60

B. 6, 12, 18, 24, 30, 36, 42, 48, 54, 60; 10, 20, 30, 40, 50, 60

C. 6, 12, 18, 24, 30, 36, 42, 48, 54, 60; 15, 30, 45, 60

D. 6, 12, 18, 24, 30, 36, 42, 48, 54, 60; 12, 24, 36, 45, 60

The answer is A.
francocanacari

The correct choice is A, since 12 and 15 are the numbers that need the least multiplication to reach 60.

To determine which two numbers have a least common multiple of 60, you must determine by how much each number must be multiplied to get to 60:

  • A = 9
  • 60/12 = 5
  • 60/15 = 4

  • B = 16
  • 60/6 = 10
  • 60/10 = 6

  • C = 14
  • 60/6 = 10
  • 60/15 = 4

  • D = 15
  • 60/6 = 10
  • 60/12 = 5

Therefore, the correct choice is A, since 12 and 15 are the numbers that need the least multiplication to reach 60.

Learn more in https://brainly.com/question/13696879

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