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anonymous
 5 years ago
I need help with lcd!!!!
anonymous
 5 years ago
I need help with lcd!!!!

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0What aspect of the process is confusing you?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The lcd of 1/6 1/10 1/18 1/21????

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok, so there are a few techniques you can use here. You can either attempt a brute force method of simply listing all the multiples of 6, 10, 18, and 21. You can factorize each of the denominators, see which factors they have in common, then multiply each one by the factors it is missing, etc.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0With so many different denominators, I recommend the factoring method.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So what are the factors of 6, 10, 18, and 21 (individually).

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.06 = 2 * 3 10 = 2 * 5 18 = 2 * 3 * 3 21 = 3 * 7 lcd = 2 * 3 * 5 * 3 * 7

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.01 2 3 6 1 2 5 10 1 2 3 6 9 18 1 3 7 21

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0find the prime factors of each number and then find the smallest set of common prime factors.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thanks guys you rock!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0why is there two threes in the equation?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.03, 3, 2 are all of the prime factors of 18. basically 3 * 3 * 2 = 18. you have to take them into account when finding the lcd because lcd / 18 should give you a remainder of 0.
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