Answers

2015-07-14T22:32:02+08:00
First, you can use factor tree. after the factor tree find the common number from of multiples of the each fractions then count the common factors as one and copy the uncommon factors. multiple the comment factors and then uncommon factors together. The product is you LCD
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2015-07-15T05:00:42+08:00
Continues division . Try to use that, that's the easiest way.
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