Question

DOY CORONA , ES PARA MAÑANA AYUDENMEE PORFA​

Answer 1

I

$\frac{5}{6} + \frac{1}{12} = \frac{10}{12} + \frac{1}{12} = \frac{11}{12}$

$\frac{1}{7} + \frac{8}{21} = \frac{3}{21} + \frac{8}{21} = \frac{11}{21}$

$\frac{4}{5} + \frac{1}{7} = \frac{28}{35} + \frac{5}{35} = \frac{33}{35}$

$\frac{2}{3} + \frac{1}{9} = \frac{6}{9} + \frac{1}{9} = \frac{7}{9}$

$\frac{1}{5} + \frac{4}{3} = \frac{3}{15} + \frac{20}{15} = \frac{23}{15}$

$\frac{5}{7} + \frac{1}{2} = \frac{10}{14} + \frac{7}{14} = \frac{17}{14}$

$\frac{1}{4} + \frac{3}{8} = \frac{2}{8} + \frac{3}{8} = \frac{5}{8}$

$\frac{3}{5} + \frac{1}{9} = \frac{27}{45} + \frac{5}{45} = \frac{32}{45}$

II

$\frac{4}{5} - \frac{1}{7} = \frac{28}{35} - \frac{5}{35} = \frac{23}{35}$

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

$\frac{5}{6} - \frac{1}{12} = \frac{10}{12} - \frac{1}{12} = \frac{3}{4}$

$\frac{1}{7} - \frac{2}{21} = \frac{3}{21} - \frac{2}{21} = \frac{1}{21}$

$\frac{3}{4} - \frac{3}{8} = \frac{6}{8} - \frac{3}{8 } = \frac{3}{8}$

$\frac{3}{5} - \frac{1}{9} = \frac{27}{45} - \frac{5}{45} = \frac{22}{45}$

$\frac{4}{5} - \frac{1}{3} = \frac{12}{15} - \frac{5}{15} = \frac{7}{15}$

$\frac{5}{7} - \frac{1}{2} = \frac{10}{14} - \frac{7}{14} = \frac{3}{14}$