《2025年阳光同学计算小达人六年级数学上册苏教版》

1. 直接写出得数。(建议 2 分钟完成)
$\frac {5}{8}÷\frac {15}{16}=$$\frac{2}{3}$
$\frac {4}{11}÷\frac {1}{3}=$$\frac{12}{11}$
$\frac {5}{12}÷\frac {3}{8}=$$\frac{10}{9}$
$\frac {8}{15}÷\frac {2}{5}=$$\frac{4}{3}$
$\frac {7}{11}÷\frac {7}{9}=$$\frac{9}{11}$
$\frac {1}{10}÷\frac {8}{21}=$$\frac{21}{80}$
$\frac {5}{48}÷5=$$\frac{1}{48}$
$\frac {5}{7}÷7=$$\frac{5}{49}$
$\frac {7}{30}÷\frac {14}{15}=$$\frac{1}{4}$
$\frac {2}{3}÷\frac {1}{2}=$$\frac{4}{3}$
$\frac {5}{6}÷\frac {5}{9}=$$\frac{3}{2}$
$\frac {3}{25}÷\frac {9}{5}=$$\frac{1}{15}$
$24÷\frac {8}{3}=$9
$16÷\frac {4}{7}=$28
$\frac {4}{9}÷\frac {4}{5}=$$\frac{5}{9}$
$10÷\frac {1}{5}=$50
$\frac {3}{14}÷\frac {6}{7}=$$\frac{1}{4}$
$\frac {3}{8}÷\frac {3}{10}=$$\frac{5}{4}$
$20÷\frac {1}{15}=$300
$\frac {8}{9}÷\frac {3}{4}=$$\frac{32}{27}$

答案： $\frac{2}{3}$ $\frac{12}{11}$ $\frac{10}{9}$ $\frac{4}{3}$ $\frac{9}{11}$ $\frac{21}{80}$ $\frac{1}{48}$ $\frac{5}{49}$ $\frac{1}{4}$ $\frac{4}{3}$ $\frac{3}{2}$ $\frac{1}{15}$ 9 28 $\frac{5}{9}$ 50 $\frac{1}{4}$ $\frac{5}{4}$ 300 $\frac{32}{27}$

2. 解方程。(建议 5 分钟完成)
$4x= \frac {8}{9}$
$\frac {5}{7}x= 1$
$\frac {11}{12}x= \frac {7}{36}$
$\frac {7}{8}x= \frac {7}{8}$
$\frac {3}{10}x= 27$
$\frac {5}{21}x= \frac {15}{14}$

答案： $x=\frac{2}{9}$ $x=\frac{7}{5}$ $x=\frac{7}{33}$ $x=1$ $x=90$ $x=\frac{9}{2}$

用简便方法计算下面各题。
$\frac {2}{3131}÷\frac {2}{1313}$
$\frac {3}{9595}÷\frac {3}{5959}$
$\frac {1}{444444}÷\frac {1}{363363}$

答案： $\frac{13}{31}$ $\frac{59}{95}$ $\frac{121}{148}$