[tex](2 \frac{1}{4} +4 \frac{5}{6}) \div (3 \frac{2}{5} - \frac{3}{4}) \div \frac{3}{5} = [/tex]

[tex] \frac{9}{4} + \frac{29}{6} = \frac{27 + 58}{12} = \frac{85}{12} [/tex]

[tex] \frac{17}{5} - \frac{3}{4} = \frac{68 - 15}{20} = \frac{53}{20} [/tex]

[tex] \frac{53}{20} \times \frac{5}{3} = \frac{53}{12} [/tex]

[tex] \frac{53}{20} \times \frac{12}{53} = \frac{3}{5} [/tex]

Ответ: 3/5

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