Question

Ayuda es para mañana​

Answer 1

$\frac{4}{5} + \frac{2}{4} = \frac{16}{20} + \frac{10}{20} = \frac{16 + 10}{20} = \frac{26}{20} = \frac{13}{10}$

$\frac{5}{4} + \frac{3}{8} = \frac{10}{8} + \frac{3}{8} = \frac{10 + 3}{8} = \frac{13}{8}$

$\frac{7}{7} + \frac{7}{14} = \frac{14}{14} + \frac{7}{14} = \frac{14 + 7}{14} = \frac{21}{14} = \frac{3}{2}$

$\frac{5}{6} - \frac{2}{6} = \frac{5 - 2}{6} = \frac{3}{6} = \frac{1}{2}$

$\frac{7}{9} - \frac{7}{3} = \frac{7}{9} - \frac{21}{9} = \frac{7 - 21}{9} = - \frac{14}{9}$

$\frac{5}{4} - \frac{3}{8} = \frac{10}{8} - \frac{3}{8} = \frac{10 - 3}{8} = \frac{7}{8}$

$\frac{6}{3} - \frac{12}{3} = \frac{6 - 12}{3} = - \frac{6}{3} = - 2$

$\frac{5}{9} - \frac{2}{3} = \frac{5}{9} - \frac{6}{9} = \frac{5 - 6}{9} = - \frac{1}{9}$

$\frac{5}{8} - \frac{9}{4} = \frac{5}{8} - \frac{18}{8} = \frac{5 - 18}{8} = - \frac{13}{8}$

$\frac{9}{12} + \frac{18}{12} = \frac{9 + 18}{12} = \frac{27}{12} = \frac{9}{4}$