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least common multiple

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Alejandra Elgueta
Alejandra Elgueta

The document provides instructions and examples for finding the least common multiple (LCM) for pairs of numbers. It lists 5 problems that ask the reader to identify the multiples of each number and determine the LCM. An answer key is provided that shows the multiples for each number and the calculated LCM for each pair.

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Find the least common multiple for each pair of numbers. 1) 4, 12 Multiples of 4 : Multiples of 12 : LCM(4, 12) = 2) 18, 24 Multiples of 18 : Multiples of 24 : LCM(18, 24) = 3) 3, 9 Multiples of 3 : Multiples of 9 : LCM(3, 9) = 4) 21, 28 Multiples of 21 : Multiples of 28 : LCM(21, 28) = 5) 45, 27 Multiples of 45 : Multiples of 27 : LCM(45, 27) = Printable Math Worksheets @ www.mathworksheets4kids.com Score :Name :
Answer Key Find the least common multiple for each pair of numbers. 1) 4, 12 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, . . .Multiples of 4 : 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, . . .Multiples of 12 : LCM(4, 12) = 2) 18, 24 18, 36, 54, 72, 90, 108, 126, 144, 162, 180, . . .Multiples of 18 : 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, . . .Multiples of 24 : LCM(18, 24) = 3) 3, 9 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, . . .Multiples of 3 : 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, . . .Multiples of 9 : LCM(3, 9) = 4) 21, 28 21, 42, 63, 84, 105, 126, 147, 168, 189, 210, . . .Multiples of 21 : 28, 56, 84, 112, 140, 168, 196, 224, 252, 280, . . .Multiples of 28 : LCM(21, 28) = 5) 45, 27 45, 90, 135, 180, 225, 270, 315, 360, 405, 450, . . .Multiples of 45 : 27, 54, 81, 108, 135, 162, 189, 216, 243, 270, . . .Multiples of 27 : 12 72 9 84 135LCM(45, 27) = Printable Math Worksheets @ www.mathworksheets4kids.com Score :Name :

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least common multiple

  • 1. Find the least common multiple for each pair of numbers. 1) 4, 12 Multiples of 4 : Multiples of 12 : LCM(4, 12) = 2) 18, 24 Multiples of 18 : Multiples of 24 : LCM(18, 24) = 3) 3, 9 Multiples of 3 : Multiples of 9 : LCM(3, 9) = 4) 21, 28 Multiples of 21 : Multiples of 28 : LCM(21, 28) = 5) 45, 27 Multiples of 45 : Multiples of 27 : LCM(45, 27) = Printable Math Worksheets @ www.mathworksheets4kids.com Score :Name :
  • 2. Answer Key Find the least common multiple for each pair of numbers. 1) 4, 12 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, . . .Multiples of 4 : 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, . . .Multiples of 12 : LCM(4, 12) = 2) 18, 24 18, 36, 54, 72, 90, 108, 126, 144, 162, 180, . . .Multiples of 18 : 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, . . .Multiples of 24 : LCM(18, 24) = 3) 3, 9 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, . . .Multiples of 3 : 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, . . .Multiples of 9 : LCM(3, 9) = 4) 21, 28 21, 42, 63, 84, 105, 126, 147, 168, 189, 210, . . .Multiples of 21 : 28, 56, 84, 112, 140, 168, 196, 224, 252, 280, . . .Multiples of 28 : LCM(21, 28) = 5) 45, 27 45, 90, 135, 180, 225, 270, 315, 360, 405, 450, . . .Multiples of 45 : 27, 54, 81, 108, 135, 162, 189, 216, 243, 270, . . .Multiples of 27 : 12 72 9 84 135LCM(45, 27) = Printable Math Worksheets @ www.mathworksheets4kids.com Score :Name :