\(\frac{3}{4}+\frac{-1}{3}+\frac{-5}{18}\)
\(=\frac{5}{12}+\frac{-5}{18}\)
\(=\frac{5}{36}\)
\(\frac{3}{4}+(-\frac{1}{3})+(-\frac{5}{18})\)\(=\frac{3}{4}-\frac{1}{3}-\frac{5}{18}=\frac{27}{36}-\frac{12}{36}-\frac{10}{36}=\frac{27-12-10}{36}=\frac{5}{36}\)
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