Question

Mike practices the cello every 5 days and the piano every 13 days. Mike practiced both the cello and the piano today. How many days will pass before Mike practices both the cello and piano again on the same day? I need to show my work

Answer 1

65 days.

Explanation:

because 13 multiplied 5 is 65 and 5 multiplied by 13 is also 65.