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Mathematics 13 Online
OpenStudy (anonymous):

what is the GCF of 30/105

OpenStudy (anonymous):

Well, because both numbers end in a 0 or a 5, you know both have 5 as a factor. But, we don't know if 5 is the GREATEST factor yet...so let's divide by 5 and see: \[ 30 \div 5 = 6 \] \[ 105 \div 5 = 21 \] What factor do 6 and 21 have in common?

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