Запишите в виде смешанного числа суммы.
а) $3 + \frac{4}{5} =$
б) $\frac{8}{9} + 2 =$
в) $30 + \frac{7}{8} =$
г) $3 + 6 + \frac{2}{3} =$
д) $4 + \frac{2}{7} + 3 =$
е) $31 + \frac{5}{5} + \frac{2}{9} =$

$3 + \frac{4}{5} = 3\frac{4}{5}$
$\frac{8}{9} + 2 = 2\frac{8}{9}$
$30 + \frac{7}{8} = 30\frac{7}{8}$
$3 + 6 + \frac{2}{3} = (3 + 6) + \frac{2}{3} = 9 + \frac{2}{3} = 9\frac{2}{3}$
$4 + \frac{2}{7} + 3 = (4 + 3) + \frac{2}{7} = 7 + \frac{2}{7} = 7\frac{2}{7}$
$31 + \frac{5}{5} + \frac{2}{9} = 31 + 1 + \frac{2}{9} = (31 + 1) + \frac{2}{9} = 32 + \frac{2}{9} = 32\frac{2}{9}$