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gaara438125
 2 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ 2 }{ 5 }  \frac{ 3 }{ x } = \frac{ 1 }{ 5x }\] what's the LCD?

gaara438125
 2 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ 2 }{ 3 } +\frac{ 7 }{ x } + \frac{ 32 }{ 6x }\] the LCD would be 6x for all the denominators can multiply into 6x 3 * 2x  x * 6  6x * 1 

gaara438125
 2 years ago
Best ResponseYou've already chosen the best response.0what ever you multiply the denominator by you HAVE to multiply the same number to the numerator.

gaara438125
 2 years ago
Best ResponseYou've already chosen the best response.0let's go back to the original equation and look at that in the denominator what is the highest number they can all equal? 5, x, and 5x

gaara438125
 2 years ago
Best ResponseYou've already chosen the best response.0touche ." lol i meant without dividing 5, x and 5x can ALL equal 5x

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.12/5 is equivalent to (2x)/(5x) if you multiply top and bottom by x 3/x is equivalent to 15/(5x) if you multiply top and bottom by 5 Notice how they now have the same denominator of 5x This means 2/5  3/x = 1/(5x) is the same as (2x)/(5x)  15/(5x) = 1/(5x) which allows you to combine the two fractions on the left side to get (2x  15)/(5x) = 1/(5x) What's next?

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1If two fractions are equal, and their denominators are equal, then the numerators must be equal

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1so this means that if (2x  15)/(5x) = 1/(5x) then 2x15 = 1

jim_thompson5910
 2 years ago
Best ResponseYou've already chosen the best response.1if 2x  15 = 1, then x = ???
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