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LUCKY_DIMON [66]
3 years ago
9

You have piano lessons every 7 days and tuba lessons every 3 days. Today you have both lessons. In how many days will you have b

oth lessons on the same day again
Mathematics
2 answers:
Pepsi [2]3 years ago
7 0
I will have piano and tuba lessons on the same day in 21 days because 3 goes into 21 seven times.
Nutka1998 [239]3 years ago
7 0
I think it's 21 because 3 • 7 = 21
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