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Published byMae Melton Modified over 8 years ago

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**Greatest Common Factor Least Common Multiple and Lowest Terms**

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**Example 1 find the GCF, LCM and lowest terms of 48 and 80**

Step 1: set up your upside down division 2 Step 2: find a number that will divide into both numbers 24 and 40 2 Step 3: divide 2 12 and 20 Step 4: repeat until you can’t find any common numbers to divide by 6 and 10 2 3 and 5 GCF: multiply the numbers on the outside on the left together LCM: multiply all of the numbers on the outside together Lowest terms: look at the bottom numbers only to make your fraction 3 2 • 2 • 2 •2 = 16 2 • 2 • 2 •2 • 3 • 5 = 240 5

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**Example 2 find the GCF, LCM and lowest terms of 208 and 112**

Step 1: set up your upside down division 2 Step 2: find a number that will divide into both numbers 104 and 56 2 Step 3: divide 2 52 and 28 Step 4: repeat until you can’t find any common numbers to divide by 26 and 14 2 13 and 7 GCF: multiply the numbers on the outside on the left together LCM: multiply all of the numbers on the outside together Lowest terms: look at the bottom numbers only to make your fraction 13 6 = 1 2 • 2 • 2 •2 = 16 2 • 2 • 2 •2 • 7 • 13 = 1456 7 7

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**Example 1 find the GCF, LCM and lowest terms of 15 and 32**

Step 1: set up your upside down division 1 Step 2: find a number that will divide into both numbers 15 and 32 Step 3: divide Step 4: repeat until you can’t find any common numbers to divide by GCF: multiply the numbers on the outside on the left together LCM: multiply all of the numbers on the outside together Lowest terms: look at the bottom numbers only to make your fraction 15 1 1 • 15 • 32 = 480 32

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**Greatest Common Factor Least Common Multiple and Lowest Terms**

Date _________ Greatest Common Factor Least Common Multiple and Lowest Terms

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**Example 1 find the GCF, LCM and lowest terms of 48 and 80**

Step 1: set up your Step 2: find a number that will ______ into both numbers Step 3: Step 4: GCF: multiply the numbers on the outside on the left together LCM: multiply all of the numbers on the outside together Lowest terms: look at the bottom numbers only to make your fraction

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**Example 2 find the GCF, LCM and lowest terms of 208 and 112**

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**Example 3 find the GCF, LCM and lowest terms of 15 and 32**

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