Sum of three fractions

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\(\frac{1}{9}+\frac{1}{5}+\frac{1}{6}=?\)
\(\frac{73}{90}\)
\(\frac{43}{90}\)
\(\frac{83}{90}\)
\(\frac{53}{90}\)
\(\frac{23}{90}\)

Calculator
Hint \(\frac{1}{9}+\frac{1}{5}+\frac{1}{6}\)
\(=\frac{1\times{10}}{9\times{10}}+\frac{1\times{18}}{5\times{18}}+\frac{1\times{15}}{6\times{15}}\)
\(=\frac{10}{90}+\frac{18}{90}+\frac{15}{90}\)
\(=\frac{10+18+15}{90}\)
\(=\frac{43}{90}\)
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