1.

The value of \(\frac{{5\frac{1}{2} \div 3\frac{2}{3}\;of\frac{1}{4} + \left( {5\frac{1}{9} - 7\frac{7}{8} \div 9\frac{9}{{20}}} \right) \times \frac{9}{{11}}}}{{5 \div 5\;of\;\frac{1}{{10}} - 10 \times 10 \div 20}}\) is:

A. \(3\frac{4}{5}\)
B. \(9\frac{1}{2}\)
C. \(1\frac{9}{{10}}\)
D. \(1\frac{4}{5}\)
Answer» D. \(1\frac{4}{5}\)


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