【答案】:
$ =18×\frac 23+\frac 9{13}×\frac 23$
$ =12+\frac 6{13}$
$ =12\frac 6{13}$
$ =\frac 45×9+\frac 15×9$
$ =(\frac 45+\frac 15)×9$
=9
$ =(1-\frac 16)×\frac {12}5$
$ =\frac 56×\frac {12}5$
=2
$ =(101-1)×\frac {11}{20}$
$ =100×\frac {11}{20}$
=55
$ =\frac 37×7-\frac 1{34}×7-\frac {27}{34}$
$ =3-(\frac 7{34}+\frac {27}{34})$
=3-1
=2
$ =46-11×\frac 17-\frac 17×3$
$ =46-(11+3)×\frac 17$
$ =46-14×\frac 17$
=46-2
=44
【解析】:
$(18+\frac{9}{13})×\frac{2}{3}$
$=18×\frac{2}{3}+\frac{9}{13}×\frac{2}{3}$
$=12+\frac{6}{13}$
$=12\frac{6}{13}$
$\frac{4}{5}÷\frac{1}{9}+\frac{1}{5}×9$
$=\frac{4}{5}×9+\frac{1}{5}×9$
$=(\frac{4}{5}+\frac{1}{5})×9$
$=1×9$
$=9$
$(1-\frac{3}{16}×\frac{8}{9})÷\frac{5}{12}$
$=(1-\frac{1}{6})×\frac{12}{5}$
$=\frac{5}{6}×\frac{12}{5}$
$=2$
$\frac{11}{20}×101-\frac{11}{20}$
$=\frac{11}{20}×(101-1)$
$=\frac{11}{20}×100$
$=55$
$(\frac{3}{7}-\frac{1}{34})×7-\frac{27}{34}$
$=\frac{3}{7}×7-\frac{1}{34}×7-\frac{27}{34}$
$=3-(\frac{7}{34}+\frac{27}{34})$
$=3-1$
$=2$
$46-11÷7-\frac{1}{7}×3$
$=46-\frac{11}{7}-\frac{3}{7}$
$=46-(\frac{11}{7}+\frac{3}{7})$
$=46-2$
$=44$