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\(\LARGE\color{black}{ \frac{A}{B}+\left(\begin{matrix} -\frac{C}{D} \\ \end{matrix}\right) ~~~\Longrightarrow ~~~ \frac{A}{B}-\frac{C}{D} }\). appply this to your problem.
okay
what do you get then?
I don't really know what you did, but this is incorrect-:(
\(\Large\color{black}{ \frac{A}{B}+\left(\begin{matrix} -\frac{C}{D} \\ \end{matrix}\right) ~~~\Longrightarrow ~~~ \frac{A}{B}-\frac{C}{D} }\). Therefore, \(\Large\color{black}{ \frac{5}{18}+\left(\begin{matrix} -\frac{1}{6} \\ \end{matrix}\right) ~~~\Longrightarrow ~~~~~?? }\) . you tell me.
okay, it will become, \(\Large\color{black}{ \frac{5}{18}-\frac{1}{6} }\). Can you subtract the fractions?
(find the common denominator)
it looks like she did (5-1)/(18-6) which that is not what we are doing here
What did you get?
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