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GCF
LCM
Simplifying Fractions
Comparing Fractions
Word Problems
100
Find the GCF of 18 and 24
What is 6?
100
Find the LCM of 10 and 15
What is 30?
100
Find 2/10 in simplest form.
What is 1/5?
100
Which fraction is greater? 7/12 or 5/12
What is 7/12?
100
Matthew goes hiking every 12 days and swimming every 6 days. He did both kinds of exercise today. How many days from now will he go hiking and swimming again?
What is 12 days? (LCM)
200
Find the GCF of 36 and 48
What is 12?
200
Find the LCM of 9 and 21
What is 63?
200
Find 10/35 in simplest form.
What is 2/7?
200
Which fraction is greater? 3/8 or 2/4
What is 2/4?
200
A full moon occurs every 30 days. If the last full moon occurred on a Friday, how many days will pass before a full moon occurs again on a Friday?
What is 210 days? (LCM)
300
Find the GCF of 64 and 72
What is 8?
300
Find the LCM of 28 and 35
What is 140?
300
Find 35/49 in simplest form.
What is 5/7?
300
Which fraction is greater? 4/5 or 4/8
What is 4/5?
300
In the school choir there are 48 girls and 64 boys. The teacher plans to arrange the students in equal rows. Only girls or boys will be in each row. What is the greatest number of students that could be in each row?
What is 16 students in each row? 3 rows of girls, 4 rows of boys. (GCF)
400
Find the GCF of 65 and 91
What is 13?
400
Find the LCM of 15, 20 and 25
What is 300?
400
Find 15/6 in simplest form.
What is 2 1/2?
400
Which fraction is greater? 1/4 or 19/30
What is 19/30?
400
Anna is making emergency kits to share with friends. She has 12 bottles of water and 16 cans of food, which she would like to distribute equally among the kits. What is the greatest number of kits Anna can make? How many water bottles will be in each kit?
What is 4 kits and 3 water bottles in each kit? (GCF)
500
Find the GCF of 28, 35 and 49
What is 7?
500
Find the LCM of 27, 36 and 45
What is 540?
500
Find 54/14 in simplest form.
What is 3 6/7?
500
Which fraction is greater? 4/15 or 3/16
What is 4/15?
500
Two neon lights are turned on at the same time. One blinks every 4 seconds and the other blinks every 6 seconds. In two minutes, how many times will they blink at the same time?
What is 5 times? Every 24 seconds they blink together. (LCM)