1.
a)
[tex]1 \frac{4}{5} = \frac{9}{5} [/tex]
b)
[tex]3 \frac{4}{7} = \frac{25}{7} [/tex]
c)
[tex] \frac{19}{9} = 2 \frac{1}{9} [/tex]
d)
[tex] \frac{27}{7} = 3 \frac{6}{7} [/tex]
2.
a)
[tex] \frac{4}{7} + \frac{6}{7} = \frac{10}{7} = 1 \frac{3}{7} [/tex]
b)
[tex]4 \frac{7}{9} + 3 \frac{4}{9} = 7 \frac{11}{9} = 8 \frac{2}{9} [/tex]
