Wiki is helping his mom carry food to their home in Haiti. He wants to balance the food in each basket equally. He needs to bring home 5 pound bags of rice and 3 pound bags of corn. How many bags of each should he carry to make it even? 5 lbs rice 3 lbs corn

Chapter 2 Least Common Multiple (Least Common Denominator)

Product The answer to a multiplication problem. 6 X 6 = 36

What is the product? 7 X 8 = 56

What is the product? 8 X 9 = 72

Multiple The product of a whole number multiplied times any other whole number. Some multiples of 6 6, 12, 18, 24, 30, 36, 42

Name some multiples of 5 5, 10, 15, 20, 25, 30, 35

Name some multiples of 7 7, 14, 21, 28, 35, 42, 49

Common Multiple A number that is a multiple of two or more numbers. It is the same multiple for each. List some multiples of 3 & , 6, 9, , 12, 18, 24

Least Common Multiple The smallest common multiple of a set of two or more numbers. 6 = 6, 12, 18, 24, 30, 36 5 = 5, 10, 15, 20, 25, 30

1. List some multiples of 2 & Compare the lists of multiples. 3. Circle the least common multiple between the two lists. 1. List some multiples of 2 & Compare the lists of multiples. 3. Circle the least common multiple between the two lists. 2- 2, 4, 6, 8, 10, 12, , 16, 24, 32

1. List some multiples of 4 & Compare the lists of multiples. 3. Circle the least common multiple between the two lists. 4- 4, 8,12, , 12, 18, 24

1. List some multiples of 3 & Compare the lists of multiples. 3. Circle the least common multiple between the two lists. 3- 3, 6, 9, 12, 15, 18, , 14, 21, 28

1. List some multiples of 3 & Compare the lists of multiples. 3. Circle the least common multiple between the two lists. 8 = 8, 16, 24, 32, 40, 48 3 = 3, 6, 9, 12, 15, 21, 24

1. List some multiples of 4 & Compare the lists of multiples. 3. Circle the least common multiple between the two lists. 8 = 8, 16, 24, 32, 40, 48 4 = 4, 8, 12, 16, 20, 24

Shortcut for Finding the Least Common Denominator or Least Common Multiple will divide evenly into 4, so 4 is your LCM. Using the shortcut, what is the LCM?

Shortcut for Finding the Least Common Denominator or Least Common Multiple Using the shortcut, what is the LCD or LCM? 3 will divide evenly into 12, so 12 is your LCD or LCM.

Shortcut for Finding the Least Common Denominator or Least Common Multiple Using the shortcut, what is the LCD or LCM? 3 will not divide evenly into 8, so find the least common multiple.

Tower method of finding LCM. 1. Divide by prime numbers only. 2. Multiply them by the remainders on top. 1430

Tower method of finding LCM. 1. Divide by prime numbers only. 2. Multiply them by the remainders on top. 3015

Tower method of finding LCM. 1. Divide by prime numbers only. 2. Multiply them by the remainders on top. 2048

Tower method of finding LCM. 1. With 3 #’s, you must remove prime #’s that are common to all. 2. Then remove prime #’s common to 2 of them. Bring up the other number

Tower method of finding LCM

Tower method of finding LCM. Both ways work! Both ways work!