[tex] \frac{3}{6} + \frac{7}{5} = \frac{15 + 42}{30} = \frac{57}{30} = \frac{19}{10} [/tex]
[tex] \frac{4}{8} \times \frac{6}{8} = \frac{24}{64} = \frac{3}{8} [/tex]
[tex] \frac{7 }{9} \div \frac{1}{3} = \frac{7 \times 3}{9 \times 1} = \frac{21}{9} = \frac{7}{3} [/tex]
Dame coronita :D
