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Printable math worksheet for finding least common multiples, featuring five problems with instructions to list multiples and find the LCM.

Math worksheet titled "Least Common Multiple Sheet 3A" with five problems asking students to find the least common multiple of pairs of numbers by listing multiples.

Math worksheet titled "Least Common Multiple Sheet 3A" with five problems asking students to find the least common multiple of pairs of numbers by listing multiples.

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1) Multiples of 6: 6, 12
Multiples of 12: 12
Least common multiple is 12.

2) Multiples of 7: 7, 14, 21, 28, 35, 42, 49, 56, 63
Multiples of 9: 9, 18, 27, 36, 45, 54, 63
Least common multiple is 63.

3) Multiples of 9: 9, 18, 27, 36, 45
Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45
Least common multiple is 45.

4) Multiples of 12: 12, 24
Multiples of 8: 8, 16, 24
Least common multiple is 24.

5) Multiples of 10: 10, 20, 30
Multiples of 15: 15, 30
Lowest common multiple is 30.
Parent Tip: Review the logic above to help your child master the concept of lowest common denominator worksheet 5th grade.
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