Find LCM The least common multiple is the smallest of the common multiples Warm-Up: CR on Integers

Toolbox: Multiple: the answers to the multiplication tables for a given number Common: #’s in both/all sets of data --------------------------------------------- STEPS: List all multiples for all given numbers Circle first # that is common to both/all sets of numbers Exit Question: 37 Find LCM and GCF of 20 and 32 -------------------------------------------------------- LEAST COMMON MULTIPLE NOTES (LCM Example: Find LCM of 8 and 12 8 = 8, 16, 24, 32, 40, 48, 56 12 = 12, 24, 36, 48 24 is the LCM.

Practice on Finding LCM and GCF 1. Find LCM and GCF of 20 and 30 30 2 x 10 2 x 15 2 x 5 5 x 3 20 = 2 x 2 x 5 20= 20,40,60,80,100 30 = 2 x 3 x 5 30 = 30, 60, 90 GCF = 2 x 5 = 10 The LCM is 60

Find LCM and GCF of…. Write hw on pg.36 1. 12, 9 2. 10 and 15 3. 3 and 6 4. 9 and 30 5. 18 and 30

Exit Question…. Find LCM and GCF of 20 and 32