Least Common Multiple

Least Common Multiple

Least Common Multiple Created by Cristina Salas Leal November 15, 2007 Objective The students will identify multiples of positive whole numbers and find the least common multiple in the set.

TEKS (6.1F) The student is expected to identify multiples of a positive integer and common multiples and the least common multiple of a set of positive integers. Math Journal Take a few minutes to write the question and respond. What

does LCM stand for? What is a multiple? When is the LCM used in the real world? What is a multiple? A multiple of a number is its product of that number with a whole number.

Example 4x1=4 4x2=8 4 x 3 = 12 4 x 4 = 16 4 x 5 = 20 multiples of 4: 4, 8, 12, 16, 20 What is LCM? LCM The

Least Common Multiple least common multiple is the least multiple that two more numbers have in common. Find the LCM of 6 and 8 Step 1 List the multiples of 6 multiples of 6: 6, 12, 18, 24, 30, 36, Step 2 List the multiples of 8 multiples of 8: 8, 16, 24, 32, 40, 48,

Step 3 Find the common multiples 6: 6, 12, 18, 24, 30, 36, 8: 8, 16, 24, 32, 40, 48, ... Step 4 The LCM of 6 and 8 is 24 Birthday Party Cindy is having a birthday party. She must buy plates, cups and napkins. Plates come in a pack 25. Cups come in a pack of 20 and napkins come in pack of 100. Cindy wants to have the same number of each. How many packages of cups, napkins and plates should she

buy? Birthday Party Problem Cont What information is given? Cups 20-pack Plates 25-pack Napkins 100-pack Find the LCM 1 pack

2 packs 3 packs 4 packs 5 packs Cups 20 40 60 80 100

Plates 25 50 75 100 125

Napkins 100 200 300 400 500 Birthday Party problem cont.

Cindy would need to buy 5 packages of cups 4 packages of plates 1 package of napkins Internet Websites Match the answer to the problem on this website. Check to see how many you answered

correctly. Click here - LCM Test your self. How many LCM problems can you answer in 60 seconds? Click here aaamath Scroll down - Play the Countdown Game Thank You

Recently Viewed Presentations

  • Wassily Kandinsky and COLOR

    Wassily Kandinsky and COLOR

    Wassily Kandinsky. Kandinsky was born in Russia in 1866. He is known to have created one of the first purely abstract works. Besides art, he studied law and economics and later became a professor at the University in Moscow.
  • Recombinant DNA

    Recombinant DNA

    Recombinant DNA Scope Human Genome = 3x109 Average Gene = 3x104 (1/105) SNP Mutation (1/109) Process Cut DNA into pieces Insert DNA into vectors that can replicate in bacteria Transform (introduce) DNA into host cell Plate cells and select those...
  • getting paid much earlier Contents Understanding SCF Reverse

    getting paid much earlier Contents Understanding SCF Reverse

    Relationship Bank will only discount invoices for established (SME) clients. ... Nowadays, every major bank offers reverse factoring and it is part of a broader Supply Chain Finance program; Supply Chain Finance is not just 'another' product …. it is...
  • Vocabulary Week 10/25-10/29 Quiz 10/29

    Vocabulary Week 10/25-10/29 Quiz 10/29

    The song was so _____ that Elizabeth found it difficult not to cry. Copy the sentence starter and complete the sentence in a way that shows you understand the meaning of the italicized word. The summer help on the highway...
  • OSBM Overview

    OSBM Overview

    FY 2011-13 Presentation of Governor Perdue's Recommended Budget Prepared by: The Office of State Budget and Management February 17, 2011 * * * * * * * * * * Summary: Governor's Budget Priorities Fiscal Responsibility and Sustainability FY 2011-12...
  • Low Frequency Background and Cosmology

    Low Frequency Background and Cosmology

    Low Frequency Background and Cosmology Xuelei Chen National Astronomical Observatories Kashigar, September 10th 2005
  • Scrap ETIDs ETID has a Scrap Module to

    Scrap ETIDs ETID has a Scrap Module to

    Customers must select the Scrap Group, Demilitarization Code and Unit of Issue before selecting a scrap stock number. Hazardous ETIDs. ETID has Modules to create and submit ETIDs for Hazardous Waste, Hazardous Material, and Hazardous Special Service Requests.
  • Acquired characteristics

    Acquired characteristics

    b) An example of Müllerian mimicry, where both ecologically sympatric pairs are distasteful, and both have warning coloration. Life-cycle of monarch Adult monarch butterflies are protected from birds and other predators by the toxins in their tissues. These toxins are...