Transcript You and your three friends go to lunch and find a deal on packages

Goal: Finding the LCM of 2 or more numbers
You
and your three friends go to
lunch and find a deal on packages
of 6 tacos. You want to buy the
minimum number of packages so
you each get the same number of
tacos and none are left over. How
many packages must you buy?
Goal: Find the LCM of 2 or more numbers
1st
List the multiples
of both numbers.
4: 4, 8,12,16, 20, 24, 28
6: 6,12,18, 24
2nd
look for the smallest
number they both
have (LCM). 12
3RD
Evaluate: to get 12
tacos I need to buy
how many
packages? 2
packages of tacos
You and your three friends
go to lunch and find a
deal on packages of 6
tacos. You want to buy the
minimum number of
packages so you each get
the same number of tacos
and none are left over.
How many packages
must you buy?
Goal: Find the LCM of 2 or more numbers
 List
Multiples of 8 and 6
 8: 8, 16, 24, 32, 40
 6: 6, 12, 18, 24, 30
 Evaluate: It
will take 24
minutes for both joggers
to arrive at their starting
point together.

One trip around a
running track is 440
yards. One jogger
can complete one lap in
8 minutes, the other
can complete it in 6
minutes. How long will
it take for both joggers
to arrive at their
starting point together
if they start at the same
time and maintain their
jogging pace?
Goal: Find the LCM of 2 or more numbers
 You
can make
groups of 3, 4,
or 9 pencils with
none left
over. What is
smallest number of
pencils you must
have to make these
groups?
36 pencils needed
Goal: Find the LCM of 2 or more numbers
1
2
3
4
Goal: Find the LCM of 2 or more numbers
 GCF
of 4, 6, and 12
 LCM
of 4,6 and 12
 4: 1,2,4
 4: 4,8,12,16,20,24
 6: 1,2,3,6
 6: 6,12,18,24
 12: 1,2,3,4,6,12
 12: 12,24
 The
 The
GCF is 2
Goal: Find the LCM of 2 or more numbers
LCM is 12
 Homework:
Worksheet:
Numbers: -
Goal: Find the LCM of 2 or more numbers