Răspuns:
[tex]2 \frac{1}{3} \times \frac{4}{7} + \frac{9}{5} \div \frac{3}{1} - \frac{1}{12} = \\ \frac{7}{3} \times \frac{4}{7} + \frac{9}{5} \div \frac{3}{1} - \frac{1}{12} = \\ \frac{28}{21} + \frac{9}{5} \div \frac{3}{1} - \frac{1}{12} = \\ \frac{28}{21} + \frac{9}{15} - \frac{1}{12} = \\ \frac{2940}{105} + \frac{63}{105} - \frac{1}{12} = \\ \frac{3003}{105} - \frac{1}{12} = \\ \frac{3.783.780}{1260} - \frac{1260}{1260} = \\ \frac{3.782.520}{1260} [/tex]
mi-a ieșit un Nr. cam mare dar dacă nu e corect te rog să mă ierți.