LCM and GCF Lesson

Word Problems Involving GCF and LCM

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Multiple Select

Peter will have 18 personal pizzas and 27 cupcakes for his birthday. What is the maximum number of people he can invite so the food is shared equally?

• 54

• 9

• 18

• 27

Multiple Select

• Both will change to green simultaneously in 10 minutes.

• Both will change to green simultaneously in 15 minutes.

• Both will change to green simultaneously in 20 minutes.

Multiple Choice

The alarms from 3 people ring at the intervals of 5, 7, and 9 seconds respectively. In how many seconds they will be ringing altogether?

• They will ring together every 35 seconds.

• They will ring together every 350 seconds.

• They will ring together every 315 seconds.

• They will ring together every 305 seconds.