[tex](4 \frac{2}{5} + 3.2) \div (4 \frac{1}{6} \times 2 \frac{2}{5} - 6.2) \\ ( \frac{22}{5} + \frac{16}{5} ) \div ( \frac{25}{6} \times \frac{12}{5} - 6.2)[/tex]
[tex] \frac{38}{5} \div (5 \times 2 - 6.2) \\ \frac{38}{5} \div 3.8[/tex]
[tex] \frac{38}{5} \div \frac{19}{5} \\ \frac{38}{5} \div \frac{5}{19} = 2[/tex]
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[tex](4 \frac{2}{5} + 3.2) \div (4 \frac{1}{6} \times 2 \frac{2}{5} - 6.2) \\ ( \frac{22}{5} + \frac{16}{5} ) \div ( \frac{25}{6} \times \frac{12}{5} - 6.2)[/tex]
[tex] \frac{38}{5} \div (5 \times 2 - 6.2) \\ \frac{38}{5} \div 3.8[/tex]
Далі можна 3.8 перетворити на звичайний дріб а далі просто скорочуємо
[tex] \frac{38}{5} \div \frac{19}{5} \\ \frac{38}{5} \div \frac{5}{19} = 2[/tex]