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02-03-2015
Mathematics

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What is the gcf and lcm of 18 and 15

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apologiabiology apologiabiology

02-03-2015

greatest common factor is the biggest number common to both
least common multipule is the smallest number that both will multily to get

find the factors
18=2 times 3 times 3
15=3 times 5
gcf=3

lcm=2 times 3 times 3 times 5=90

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