Tell whether the following word problems could be solved using GCF or LCM and
solve them.
1. Mrs. Evans has 120 crayons and 30 pieces of paper to give to her students. What is
the largest # of students she can have in her class so that each student gets equal #
of crayons and equal # of papers.
2. Rosa is making a game board that is 16 inches by 24 inches. She wants to use square
tiles. What is the largest tile she can use?
3. The traffic lights at three different road crossings change after every 48 seconds, 72
seconds respectively. If they change simultaneously at 7 a.m., at what time will they
change simultaneously again?