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2015-10-29T21:02:34+08:00

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Example for it is:
8 and 12
their gcf is 4
their lcd is 24
how did I get it?gcf, lcd
simple. just think of it as a fraction 8/12
you can use prime factorization
 8=2x2x2
12=2x2x3
their are two pairs of 2. 2x2=4
so 4 is their gcf
for finding its lcd, you can figure it out by listing method
 8=8,16,24,32,40
12=12,24,36,48,60
lcd means lowest common denominator
the only pair you can see is 24.
so 24 is their lcd



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