Question

13．計算．
$\frac{3}{16}$×$\frac{4}{9}$               
$\frac{4}{9}$÷$\frac{16}{15}$              
$\frac{14}{5}$÷24．

Answer 1

分析 根據(jù)分?jǐn)?shù)乘法、分?jǐn)?shù)除法的計算法則，依次進(jìn)行解答即可．

解答 解：
$\frac{3}{16}$×$\frac{4}{9}$=$\frac{1}{12}$               
$\frac{4}{9}$÷$\frac{16}{15}$=$\frac{5}{12}$              
$\frac{14}{5}$÷24=$\frac{7}{60}$．

點(diǎn)評 此題考查了分?jǐn)?shù)乘法和分?jǐn)?shù)除法，明確分?jǐn)?shù)乘法、分?jǐn)?shù)除法的計算法則，是解答此題的關(guān)鍵．