Using LCM and GCF to solve word problems

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Using LCM and GCF to solve word problems

• Planner Notes
• Finish LCM GCF word problems
• Bellwork Do evens off the LCM
• Notes pageExample 1

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Real Life Problem

• We are making trick or treat bags. You have 18
  lollipops, 12 tootsie rolls, and 6 red vines.
  What is the largest amount of bags you can make
  with an even amount in each bag. How many of
  each candy is in each bag?

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Set up interactive notebook write warm up
problem on page 2-7
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GCF Word ProblemsGreatest Common Factor
Toolbox Prime can only be divided by itself
and one. Common- same in all sets Factor one
of 2 or more numbers that multiply to get a
product.
Exit Question 1 or 4 on homework page (

• Steps
• 1. Get prime factorization
• 2. Circle common prime s
• 3. Multiply common primes
• 4. What is NOT circled is the
• amount of each in the group

18 lollipops, 12 tootsie rolls, 6 red
vines 182x3x3 122x2x3 62x3 GCF is the
multiplication of the common primes. 2x36
bags What is not circled (highlighted here) is
how many of each type of candy in each bag.
So each bag has 3 lollipops, 2 tootsie rolls, and
1 red vine (since 1 is the only other factor
other than prime).
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Homework

• Finish both worksheets (LCM and GCF) word
  problems.
• Extra Credit on GCF practice 1-6.