1. 08 LCM Least Common Multiple
Lowest, smallest, littlest
Common =
Shared, alike, same
Multiple =
Count by a #
the product of any quantity and an integer

2. Example of Multiples 5 x 1 5 x 2 5 x 3 5 x 4 5 x 5 5 x 6
Now count by 3’s
Notice the 1st time they have something in common?

3. Example
You & your friend go to a carnival that has a large & small Ferris wheel.
You get on the large one & your friend hops on the small one.
The rides begin at the same time.
How many seconds will pass before you & your friend are both at the bottom again if:

4. Example 1
The large wheel makes one revolution in 30 seconds &
the small wheel makes one revolution in 20 seconds. 30 20
Least Common Multiple 60 40 90 60
120 80
100
120

5. Example 1
The large wheel makes one revolution in 50 seconds &
the small wheel makes one revolution in 30 seconds. 50 30
100 60
150 90
Least Common Multiple
200
120
150
180