Sagot :
Answer:
[tex] \frac{2}{9} + \frac{6}{9} = \frac{8}{9} [/tex]
[tex] \frac{4}{10} + \frac{1}{5} = \frac{3}{5} [/tex]
[tex] \frac{2}{5} + \frac{5}{10} = \frac{9}{10} [/tex]
[tex] \frac{2}{5} + \frac{3}{8} = \frac{31}{40} [/tex]
[tex] \frac{7}{10} + \frac{2}{10} = \frac{9}{10} [/tex]