Question

4．直接寫出得數(shù)

$\frac{11}{15}$×$\frac{25}{44}$=	$\frac{25}{39}$×$\frac{13}{50}$=	$\frac{10}{9}$×6×0=	$\frac{3}{5}$×$\frac{5}{6}$=	$\frac{2}{9}$×$\frac{3}{5}$=
180÷$\frac{9}{10}$=	$\frac{7}{11}$÷14=	0.8÷$\frac{16}{13}$=	$\frac{1}{5}$×3=	$\frac{2}{5}$×$\frac{5}{8}$=

Answer 1

分析 根據(jù)分?jǐn)?shù)、乘除法的計(jì)算方法進(jìn)行計(jì)算，計(jì)算的結(jié)果要化成最簡(jiǎn)分?jǐn)?shù)，據(jù)此解答．

解答 解：

$\frac{11}{15}$×$\frac{25}{44}$=$\frac{5}{12}$	$\frac{25}{39}$×$\frac{13}{50}$=$\frac{1}{6}$	$\frac{10}{9}$×6×0=0	$\frac{3}{5}$×$\frac{5}{6}$=$\frac{1}{2}$	$\frac{2}{9}$×$\frac{3}{5}$=$\frac{2}{15}$
180÷$\frac{9}{10}$=200	$\frac{7}{11}$÷14=$\frac{1}{22}$	0.8÷$\frac{16}{13}$=$\frac{13}{20}$	$\frac{1}{5}$×3=$\frac{3}{5}$	$\frac{2}{5}$×$\frac{5}{8}$=$\frac{1}{4}$

點(diǎn)評(píng) 本題主要考查了學(xué)生對(duì)分?jǐn)?shù)乘、除法計(jì)算方法的掌握．