What is the least common multiple of 18, 20, and 9?

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06-12-2020
Mathematics

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What is the least common multiple of 18, 20, and 9?

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YellowBalloon YellowBalloon · Answer 1 · 2020-12-06T18:34:35+01:00

YellowBalloon YellowBalloon

06-12-2020

ANSWER: 180

Multiples of 9:
9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, 144, 153, 162, 171, 180

Multiples of 18:
18, 36, 54, 72, 90, 108, 126, 144, 162, 180

Multiples of 20:
20, 40, 60, 80, 100, 120, 140, 160, 180

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Hrishii Hrishii · Answer 2 · 2020-12-06T18:36:38+01:00

Hrishii Hrishii

06-12-2020

Answer:

180

Step-by-step explanation:

2| 18, 20, 9

2 | 9, 10, 9

3 | 9, 5, 9

3| 3, 5, 3

5 | 1, 5, 1

| 1, 1, 1

LCM OF 18, 20, 9 = 2*2*3*3*5 = 180

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