SOLUTION: 5/6,7/42,5/21,1/168 a. Determine the LCD of the above by inspection. LCD by inspection b. Determine the LCD of the above by division of prime numbers. LCD by division of prim

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: 5/6,7/42,5/21,1/168 a. Determine the LCD of the above by inspection. LCD by inspection b. Determine the LCD of the above by division of prime numbers. LCD by division of prim      Log On

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Question 1148695: 5/6,7/42,5/21,1/168
a. Determine the LCD of the above by inspection.
LCD by inspection
b. Determine the LCD of the above by division of prime numbers.
LCD by division of prime numbers

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
By inspection it is 168. Everything must (and does) divide evenly into that.
6=2*3
42=2*3*7
21=3*7
168=2^3*3*7

168=2*84
=2*2*42
=2*2*2*21