Răspuns:
[tex]( \frac{5 \times 5 + 3}{5} - \frac{1 \times 3 + 1}{3} ) \div( \frac{12 \times 7 + 7}{12} - \frac{2 \times 4 + 1}{4} ) \\ (\frac{28}{5 } - \frac{4}{3} ) \div ( \frac{91}{12} - \frac{9}{4} ) \\ (aducem \: la \: acelas \: numitor \: si \: efectuam \: scaderea) \\ \\ \frac{64}{15} \div \frac{64}{12} \\ \frac{64}{15} \times \frac{12}{64} (simplificam \: prim \: 64) \\ \frac{12}{15} (simplific \: prin \: 3) \\ \frac{4}{5} [/tex]
Succes!!!!!!!!!!!!!!!!!!
Explicație pas cu pas:
COROANA??
