识别出错

1.$\frac{9}{4}$ 1 $\frac{45}{7}$ 4
0 $\frac{8}{13}$ $\frac{35}{4}$ $\frac{84}{5}$
36 $\frac{34}{3}$ $\frac{15}{2}$ 40
$\frac{3}{2}$ $\frac{18}{25}$ 24 $\frac{20}{3}$
$\frac{35}{6}$ 35 $\frac{27}{2}$ $\frac{3}{5}$

2.计算下面各题。(写出计算过程)(每题3★)
$\frac{8}{25}×30$
$\frac{13}{35}×20$
$\frac{5}{27}×90$
$\frac{5}{9}×60$
$\frac{11}{84}×14$
$\frac{7}{88}×40$

2.$\frac{48}{5}$ $\frac{52}{7}$ $\frac{50}{3}$
$\frac{100}{3}$ $\frac{11}{6}$ $\frac{35}{11}$(计算过程略)

3.计算下面各题,能简算的要简算。(每题3★)
$\frac{5}{6}+\frac{3}{10}+\frac{4}{5}$
$\frac{6}{7}-(\frac{7}{10}-\frac{1}{7})$
$\frac{10}{13}-\frac{8}{11}+\frac{3}{13}$

3.$\frac{29}{15}$ $\frac{3}{10}$ $\frac{3}{11}$