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Clarie takes private tennis lessons every 6 days and piano lessons every 4 days.In 60 days,how often will she have tennis and piano lessons on the same day?

User Dashman
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multiples of 4: 4,8,12,16,20,24,28,32,36,40,44,48,52,56,60

12 24 36 and 48 are the only common factors

so 4 days

User Ludlow
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