Question

you have dance class every 3 days today is monday and you have dance class in how many more days will you you have dance class on monday again use the lcm to find your answer

Answer 1

the awnser would be : Lmc 21

Answer 2

7 days in a week, 3 days a rotation.
multiples of 7: 7, 14, 21, 28
multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24

the LCM is 21, because it is the smallest multiple of both numbers. there will be 21 more days until you take dance class on mondays.