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Mathematics 14 Online
OpenStudy (anonymous):

gcf for 40 and 30

OpenStudy (anonymous):

120

OpenStudy (anonymous):

120 is wrong, it's 5

OpenStudy (anonymous):

kk i knew it wasnt 120

OpenStudy (anonymous):

draw out a factor tree. :) 40=2x2x2x5 30=2x3x5 they share 2x5: ergo, the GCF = 10

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