Question 83701
{{{9 + (3/x)}}}
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{{{(x/4) + (1/12)}}}
:
Put both fractions over a common denominator
{{{(9x+3)/x}}}
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{{{(3x+1)/12}}}
:
Invert the dividing fraction and multiply
Factor out 3
Cancel the (3x+1)'s
:
{{{(9x+3)/x}}} * {{{12/(3x+1)}}} = {{{(3(3x+1))/x}}} * {{{12/(3x+1)}}} = {{{36/x}}}