Question 1133139
{{{15/x=12/90}}}


{{{(15/x)x=(12/90)x}}}


{{{15=(12/90)x}}}


{{{15(90/12)=x}}}

{{{15(3*30)/(3*4)=x}}}

{{{15(30/4)=x}}}

{{{15(15/2)=x}}}

{{{x=112&1/2}}}



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ALTERNATIVE


{{{x/15=90/12}}}

{{{x/15=(3*3*2*5)/(3*4)}}}

{{{(x/(3*5))=(3*5)/2}}}

{{{x=((3*5)^2)/2}}}

{{{x=225/2}}}

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{{{x=112&1/2}}}