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6 April, 19:02

Last summer, karl went to the beach every 5 days. Antonia went to the beach every 7 days. how often did they get see each other at the beach?

(need the answer asap!)

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  1. 6 April, 19:07
    0
    Find the lcm of 7 and 5.

    7: 7, 14, 21, 28, 35,

    5: 5, 10, 15, 20, 25, 30, 35

    so they got to see each other every 35 days.
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