1. WARM UP Find the greatest common factor (GCF): 1.24, 30, 42 Find the least common multiple (LCM): 1.4, 12, 16

2. HOMEWORK 1. On her bicycle, Maria circled theblock every 4 minutes. Herbrother, on his scooter, circles theblock every 10 minutes. If theystart together, how many minuteswill it be before they meet again? 2. Find the least common multiple: 1. 18, 27

3. GREATEST COMMON FACTOR vs. LEAST COMMON MULTIPLE Students will be able to identify the difference between GCF and LCM of two or more composite numbers. What other method(s) can we use to find the GCF and LCM?

4. The Math Club members are preparing identical welcome kits for the sixth-graders. They have 60 pencils and 48 memo pads. What is the greatest number of welcome kits they can prepare using all of the pencils and memo pads?

6. Zack helped his mom plant a vegetable garden. Zack planted a row every 30 minutes and 20 minutes. If they started together, how long will it be before they both finish a row at the same time?

8. Antonio mows the lawn every three weeks and washed the car every two weeks. If he does both today, how many days will pass before he does them both on the same day again?

10. 1.The GCF of 1,274 and 1,365 is 91, or 7 13. Are 7, 13, and 91 factors of both 1,274 and 1,365? Explain. (CCSS- Written Response Task) 2.Can two numbers have the same LCM as their GCF? Explain. EXTRA CREDIT