Question 556909
this is what i see:
{{{7/(e+f)}}}{{{5/e}}}{{{6/f}}}
i find the lcd by multiplying all the bottom variables together
{{{(e+f)(e)(f)}}}
{{{e^2f+ef^2}}}
so
to find the numeratorsu multiply the denominators to the numerators that dont already have that denom under it
{{{7ef}}} {{{5f(e+f)}}} {{{6e(e+f)}}}
{{{7ef}}} {{{5ef+5f^2}}} {{{6e^2+6ef}}}

no put the numeraters back over the denom
{{{7ef/(e^2f+ef^2)}}} {{{(5ef+5f^2)/(e^2f+ef^2)}}} {{{(6e^2+6ef)/(e^2f+ef^2)}}}