a) [tex]3\frac{3}{5} +\frac{6}{10} = \frac{18}{5} +\frac{6}{10}=\frac{21}{5}[/tex]
b) [tex]\frac{1}{7}+5\frac{6}{21}=\frac{1}{7}+\frac{111}{21}=\frac{38}{7}[/tex]
c) [tex]1\frac{5}{6}+\frac{3}{4} =\frac{11}{6} +\frac{3}{4} =\frac{31}{12}[/tex]
d) [tex]3\frac{4}{5} +2\frac{5}{6} =(3+2)+\frac{4}{5} +\frac{5}{6} =5 + \frac{49}{30}=5+1\frac{19}{30}=5+1+\frac{19}{30}=6+\frac{19}{30} = 6\frac{19}{30}[/tex]
e)[tex]2\frac{5}{9} +3\frac{1}{4} = (2+3) + (\frac{5}{9} +\frac{1}{4} ) = 5\frac{29}{36}[/tex]
f)[tex]3\frac{5}{6} +2\frac{3}{8} = (3+2) +(\frac{5}{6} +\frac{3}{8}) = 5+\frac{29}{24} =5+1\frac{5}{24} = 6\frac{5}{24}[/tex]
