Question

18．計(jì)算．
$\frac{3}{16}$×$\frac{4}{9}$               $\frac{4}{9}$÷$\frac{16}{15}$              $\frac{14}{3}$÷24．

Answer 1

分析 根據(jù)分?jǐn)?shù)乘除法的計(jì)算方法進(jìn)行解答即可．

解答 解：$\frac{3}{16}$×$\frac{4}{9}$
=$\frac{3×4}{16×9}$
=$\frac{1}{12}$；
           
$\frac{4}{9}$÷$\frac{16}{15}$
=$\frac{4}{9}$×$\frac{15}{16}$
=$\frac{4×15}{9×16}$
=$\frac{5}{12}$；

$\frac{14}{3}÷24$
=$\frac{14}{3}×\frac{1}{24}$
=$\frac{14×1}{3×24}$
=$\frac{7}{36}$．

點(diǎn)評(píng) 此題考查了分?jǐn)?shù)乘除法的計(jì)算方法，直接約分計(jì)算即可．