① 这个活动首先要进行知识竞选，下面是小光的竞选内容，看看你会做吗？
$\frac{2}{7} + \frac{10}{7} =$
$\frac{29}{10} - \frac{3}{10} =$
$\frac{3}{5} + 0.4 =$
$\frac{13}{4} + \frac{11}{6} =$
$4 - \frac{11}{4} =$
$\frac{7}{20} - 0.35 =$
$\frac{8}{3} + 4 =$
$1 + \frac{1}{2} + \frac{1}{3} =$
$0.5 + \frac{3}{4} - \frac{1}{2} =$
$\frac{76}{11} - 3 + \frac{12}{11} =$
$\frac{57}{40} + \frac{50}{9} + \frac{23}{40} =$
$\frac{1}{6} + \frac{3}{4} + \frac{1}{3} =$
$\frac{2}{7} + \frac{5}{6} - \frac{1}{6} =$
$\frac{2}{5} + \frac{1}{8} + \frac{7}{8} =$
$9 + \frac{3}{7} + \frac{4}{7} =$
$1 - \frac{7}{9} - \frac{2}{9} =$

$1\frac{5}{7}\ \ 2\frac{3}{5}\ \ 1\ \ 5\frac{1}{12}\ \ 1\frac{1}{4}\ \ 0\ \ 6\frac{2}{3}$
$1\frac{5}{6}\ \ \frac{3}{4}\ \ 5\ \ 7\frac{5}{9}\ \ 1\frac{1}{4}\ \ \frac{20}{21}\ \ 1\frac{2}{5}$
$10\ \ 0$

② 一名优秀的小记者要有好眼力，让我们一起来考一考小光的眼力吧！
（比较大小）
$4\frac{8}{25}$ () $4\frac{4}{5}$
$2\frac{1}{8}$ () $2\frac{3}{24}$
$\frac{2}{3}$ () $\frac{3}{5}$
$\frac{1}{9}$ () $\frac{1}{10}$
$\frac{5}{12}$ () $\frac{7}{48}$
$\frac{7}{22}$ () $\frac{6}{11}$
$\frac{3}{8}$ () $\frac{1}{7}$

＜ = ＞ ＞ ＞ ＜ ＞