Question

Mai and Clare are making signs to advertise the school dance. It takes Mai 6 minutes to complete a sign, it take Clare 8 minutes to complete a sign. When is the first time Mai and Clare will complete a sign at the same time?

Answer 1

24 minutes

Explanation:

We solve the above question using Lowest Common Multiple Method.

We find the Multiples of 6 and 8 minutes and then pick the first multiple that is common to both numbers

Multiples of 6:

6, 12, 18, 24, 30, 36

Multiples of 8:

8, 16, 24, 32, 40

Therefore,

LCM(6, 8) = 24

Therefore, the first time Mai and Clare will complete a sign at the same time is 24 minutes