I've done a couple of these type of problems got all 3 wrong, need help.  We are supposed to use a tree for LCD.
in least common multiple by

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1 Answer

(3/10) +(1/6) +(5/12)

=0.3 +(2/12) +(5/12)

=0.3 +(7/12)

=0.3+0.583333333333333..

=0.883333333333333...
by

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