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

Question

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

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Diễm Kiều 2 months 2021-07-31T19:05:32+00:00 2 Answers 6 views 0

Answers ( )

    0
    2021-07-31T19:07:13+00:00

    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

    0
    2021-07-31T19:07:21+00:00

    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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