Преобразуем каждую дробь к дроби со знаменателем 54:
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$$\frac{1}{3} = \frac{1 \cdot 18}{3 \cdot 18} = \frac{18}{54}$$
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$$\frac{4}{9} = \frac{4 \cdot 6}{9 \cdot 6} = \frac{24}{54}$$
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$$\frac{5}{6} = \frac{5 \cdot 9}{6 \cdot 9} = \frac{45}{54}$$
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$$\frac{5}{18} = \frac{5 \cdot 3}{18 \cdot 3} = \frac{15}{54}$$
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$$\frac{8}{27} = \frac{8 \cdot 2}{27 \cdot 2} = \frac{16}{54}$$
Ответ: 1) \(\frac{18}{54}\), 2) \(\frac{24}{54}\), 3) \(\frac{45}{54}\), 4) \(\frac{15}{54}\), 5) \(\frac{16}{54}\)