Question

7．直接寫出結(jié)果．

$\frac{3}{4}$×$\frac{4}{5}$=	$\frac{2}{15}$×15=	36×$\frac{7}{9}$=	$\frac{18}{11}$×121=	95×$\frac{21}{76}$=
$\frac{4}{5}$×$\frac{1}{3}$=	$\frac{6}{13}$×$\frac{2}{3}$=	$\frac{3}{14}$×$\frac{7}{26}$=	$\frac{4}{5}$×$\frac{6}{7}$=	$\frac{38}{15}$×$\frac{5}{12}$=

Answer 1

分析 根據(jù)分?jǐn)?shù)乘法的計(jì)算方法進(jìn)行計(jì)算即可．

解答 解：

$\frac{3}{4}$×$\frac{4}{5}$=$\frac{3}{5}$	$\frac{2}{15}$×15=2	36×$\frac{7}{9}$=28	$\frac{18}{11}$×121=198	95×$\frac{21}{76}$=$\frac{105}{4}$
$\frac{4}{5}$×$\frac{1}{3}$=$\frac{4}{15}$	$\frac{6}{13}$×$\frac{2}{3}$=$\frac{4}{13}$	$\frac{3}{14}$×$\frac{7}{26}$=$\frac{3}{52}$	$\frac{4}{5}$×$\frac{6}{7}$=$\frac{24}{35}$	$\frac{38}{15}$×$\frac{5}{12}$=$\frac{19}{18}$

點(diǎn)評(píng) 本題主要考查了學(xué)生對(duì)分?jǐn)?shù)乘法計(jì)算方法的掌握，在計(jì)算時(shí)要細(xì)心．