772-2011
Tuesday, February 14, 2012
how to add with unlike denominators
take the 2 (or more) fractions (
2/9
and
5/7
)
find the LCM (63, for this one)
make equivalent fractions (remember, what is done to the bottom must be done to the top
add (
14/63
+
45/63
)
change it to lowest terms (69/63=
1
6/63=1 2/21)
you're done!
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