题目
一、口算。(1)/(2)div(2)/(3)= 10div(5)/(3)= 16div(4)/(9)= (4)/(7)div(4)/(7)=
一、口算。
$\frac{1}{2}\div\frac{2}{3}=$ $10\div\frac{5}{3}=$ $16\div\frac{4}{9}=$ $\frac{4}{7}\div\frac{4}{7}=$
题目解答
答案
1. $\frac{1}{2} \div \frac{2}{3} = \frac{1}{2} \times \frac{3}{2} = \frac{3}{4}$
2. $10 \div \frac{5}{3} = 10 \times \frac{3}{5} = 6$
3. $16 \div \frac{4}{9} = 16 \times \frac{9}{4} = 36$
4. $\frac{4}{7} \div \frac{4}{7} = \frac{4}{7} \times \frac{7}{4} = 1$
答案：
1. $\frac{3}{4}$
2. $6$
3. $36$
4. $1$
$\boxed{
\begin{array}{cccc}
\frac{3}{4} & 6 & 36 & 1 \\
\end{array}
}$