Вычислить:
1)
[tex](4 \frac{1}{10} - 3 \frac{4}{15} ) \times \frac{5}{6} + 4 \frac{1}{10} \div 1 \frac{1}{5} [/tex]
2)
[tex](12 \frac{1}{9} - 10 \frac{2}{5} ) \div 38 \frac{1}{2} + 2 \frac{8}{9} \times 18[/tex]
3)
[tex]8 \frac{3}{4} + \frac{5}{12} \div ( \frac{1}{3} \times 2 \frac{1}{2} - \frac{7}{8} )[/tex]
Объясните пожалуйста как решить!))
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