Day 3 Warmup

1. Find the GCF of 28 & 70

Andrew is making trail mix out of 48 bags of raisins and 32 bags of pretzels. He wants each portion to be identical, containing the same

items with nothing left over. 2. What is the greatest number of portions he can  make?  3. How much of each item (raisins & pretzels) will  be in each portion?

Go over Homework #1

Multiple: counting by a number

Least Common Multiple: Less than 12, LISTING Method

LCM of 4 & 6

LCM of 12 & 8

LCMLadder Method

For numbers greater than 12

LCM of 18 & 24

LCM of 36 & 45

UTry LCM

10 & 12 28 & 42

Examples: LCM

6 & 7 9 & 10 5 & 20 6 & 18(Neighbors)

LCM:Three Numbers

*LIMITED to only 2 numbers at a time*

4 , 6 & 10 9, 12 & 18

UTry:

6 , 12 , 30 6 , 8 , 10

Two faucets are dripping. One faucet drips every four seconds and the other faucet drips every nine seconds. If a drop of water falls from both faucets at the same time, how many

seconds will it be before you see the faucets drip at the same time again?

On October 2nd, Sydney, Jess, and Lisa are walking together. Sydney walks every 6 days, Jess walks every 4 days, and

Lisa walks every 8 days. On what date will they all walk on the same day again?

Homework # 2

Find the LCM:

1. 6 , 9

2. 48 & 36

3. 3, 5

4. 9 & 54

5. 32 & 33