Question

13£®¿ÚËã

$\frac{2}{15}$¡Á4=	$\frac{5}{12}$¡Á4=	$\frac{8}{9}$¡Á$\frac{3}{10}$=
9¡Á$\frac{7}{18}$=	$\frac{2}{3}$¡Á$\frac{9}{10}$=	$21¡Â\frac{7}{9}$=
$\frac{3}{8}¡Â\frac{1}{3}$=	$\frac{1}{9}$¡Â$\frac{4}{9}$=	$\frac{9}{2}¡Â2$=
$\frac{9}{11}¡Â18$=	$\frac{9}{14}¡Â\frac{3}{7}$=	$\frac{5}{6}¡Á\frac{2}{3}$=
$\frac{5}{8}¡Â\frac{5}{8}$=	$\frac{2}{15}¡Á\frac{3}{4}$=

Answer 1

·ÖÎö ¸ù¾Ý·ÖÊý³Ë³ý·¨µÄ¼ÆËã·½·¨½øÐмÆË㣮

½â´ð ½â£º

$\frac{2}{15}$¡Á4=$\frac{8}{15}$	$\frac{5}{12}$¡Á4=$\frac{5}{3}$	$\frac{8}{9}$¡Á$\frac{3}{10}$=$\frac{4}{15}$
9¡Á$\frac{7}{18}$=$\frac{7}{2}$	$\frac{2}{3}$¡Á$\frac{9}{10}$=$\frac{3}{5}$	$21¡Â\frac{7}{9}$=27
$\frac{3}{8}¡Â\frac{1}{3}$=$\frac{9}{8}$	$\frac{1}{9}$¡Â$\frac{4}{9}$=$\frac{1}{4}$	$\frac{9}{2}¡Â2$=$\frac{9}{4}$
$\frac{9}{11}¡Â18$=$\frac{1}{22}$	$\frac{9}{14}¡Â\frac{3}{7}$=$\frac{3}{2}$	$\frac{5}{6}¡Á\frac{2}{3}$=$\frac{7}{18}$
$\frac{5}{8}¡Â\frac{5}{8}$=1	$\frac{2}{15}¡Á\frac{3}{4}$=$\frac{1}{10}$

µãÆÀ ¿ÚËãʱ£¬×¢ÒâÔËËã·ûºÅºÍÊý¾Ý£¬È»ºóÔÙ½øÒ»²½¼ÆË㣮