\(x-\dfrac{5}{12}=\dfrac{3}{8}\)
\(\Rightarrow x=\dfrac{3}{8}+\dfrac{5}{12}\)
\(\Rightarrow x=\dfrac{19}{24}\)
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\(\dfrac{223}{669}-y=\dfrac{11}{88}\)
\(\Rightarrow\dfrac{1}{3}-y=\dfrac{1}{8}\)
\(\Rightarrow y=\dfrac{1}{3}-\dfrac{1}{8}\)
\(\Rightarrow y=\dfrac{5}{24}\)