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

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.

18 Days

Step-by-step explanation:

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

<-0612>

t=Tim does laundry every 9 days

<-09>

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

<-061827>

Tim

<-091827--->

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

lcm (6, 9) = 18

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step-by-step explanation:

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step-by-step explanation:

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