Form 11: Distinguishing GCF vs LCM in Context
Practice determining whether a given context requires finding the greatest common factor or the least common multiple. Strengthen problem-solving skills in context.
Questions
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MultiChoice
Should you use GCF or LCM to find how many identical gift packages can be made from 18 cookies and 24 candies?
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MultiChoice
Should you use GCF or LCM to find when two sirens sounding every 15 and 20 seconds will sound together again?
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MultiChoice
Should you use GCF or LCM to cut two wooden boards of lengths 40 cm and 64 cm into equal-sized maximum length pieces?
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MultiChoice
Should you use GCF or LCM to determine the smallest common denominator when adding 1/6 and 1/8?
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MultiChoice
Should you use GCF or LCM to simplify the fraction 24/36 to its lowest terms?
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MultiChoice
Hot dog buns come in packs of 8 and sausages in packs of 12. To buy equal amounts of both, should you find GCF or LCM?
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MultiChoice
To divide 32 boys and 48 girls into equal teams with only boys or only girls, should you use GCF or LCM?
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MultiChoice
Two planetary orbits take 12 years and 18 years. To find when they align again, should you use GCF or LCM?
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MultiChoice
Which value will ALWAYS be less than or equal to the smaller of two positive numbers?
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MultiChoice
Which value will ALWAYS be greater than or equal to the larger of two positive numbers?
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MultiChoice
To factor out the largest common value from 18x + 24, should you find GCF or LCM?
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MultiChoice
A blinking sign lights up every 8 seconds and another every 14 seconds. Finding when both light together requires: