Question

Ronald and Tim both did their laundry today. Ronald does laundry every 6 66 days and Tim does laundry every 9 99 days.

Answer 1

Answer: 18 Days

Explanation:

Let's look at their indivigual schedules for hte nex little While

<-0------6------12---->

t=Tim does laundry every 9 days

<-0---------9---------->

They haven't done laundry on the same day again yet, so let's keep going!

When we keep goin, we see thar the multiple first meet at 18

Ronal

<-0----6----18----27---->

Tim

<-0----9----18----27--->

Mathematically, we say that 18 is the least common multiple of 6 and 9. in math notation this looks like:

lcm (6, 9) = 18

Answer 2

Find a number that can be divided by both 6 and 9, which is 18. That means they will do laundry on the same day every 18 days.