please help me solve this linear equation..find the value of x..i'll post the equation in replies..i
\[\frac{ x }{ 2 }+\frac{ x }{ 3 }=1\]
first multiply 6 on both sides and tell me what u get?
reasoning for multiplying by 6 first determine the GCD-greatest common denominator of the 2 fractions the GCD turns out to be 6 convert the fractions so they both have a denominator of 6 then combine the 2 fractions because they both have denominator of 6 now because you want to get rid of the denominator, you multiply by 6 to both sides of the equation
i dont understand :/
do you understand what a GCD is ?
not really :/ sorry :/
you do know what a denominator is right?
yes..
hmm i might've meant LCD not GCD w/e anyways say we have 1/2 and 1/3 we want to find the lowest denominator that is a multiply of both 2 and 3 12 is a multiply of 2 and 3, but its not the lowest 6 is also a multiply of 2 and 3 and it turns out to be the lowest denominator
now we want to convert 1/2 and 1/3 into fractions with denominators of 6 \[\frac{1}{2}*\frac{3}{3}=\frac{3}{6}\] \[\frac{1}{3}*\frac{2}{2}=\frac{2}{6}\] by doing so, we can now add the 2 fractions together \[\frac{3}{6}+\frac{2}{6}=\frac{3+2}{6}=\frac{5}{6}\]
does this make sense?
yes that does make sense..
we can apply this to your question \[\frac{x}{2}=\frac{1}{2}x=\frac{3}{3}*\frac{1}{2}x=\frac{3}{6}x\]
add up the 2 fractions, then solve for x
ok thank you for your help :)
no prob
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