Question

18．直接写得数．

$\frac{5}{6}$+$\frac{3}{4}$﹦	$\frac{5}{6}$-$\frac{3}{4}$﹦	$\frac{5}{6}$×$\frac{3}{4}$﹦	$\frac{5}{6}$÷$\frac{3}{4}$﹦
$\frac{2}{9}$×0.6﹦	$\frac{5}{8}$×$\frac{4}{15}$×0﹦	0÷$\frac{5}{8}$﹦	$\frac{1}{3}$×$\frac{1}{4}$÷$\frac{1}{3}$×$\frac{1}{4}$﹦

Answer 1

分析 根据分数四则运算的计算法则进行计算即可，$\frac{1}{3}$×$\frac{1}{4}$÷$\frac{1}{3}$×$\frac{1}{4}$运用乘法交换律简算．

解答 解：

$\frac{5}{6}$+$\frac{3}{4}$﹦$\frac{19}{12}$	$\frac{5}{6}$-$\frac{3}{4}$﹦$\frac{1}{12}$	$\frac{5}{6}$×$\frac{3}{4}$﹦$\frac{5}{8}$	$\frac{5}{6}$÷$\frac{3}{4}$﹦$\frac{10}{9}$
$\frac{2}{9}$×0.6﹦$\frac{2}{15}$	$\frac{5}{8}$×$\frac{4}{15}$×0﹦0	0÷$\frac{5}{8}$﹦0	$\frac{1}{3}$×$\frac{1}{4}$÷$\frac{1}{3}$×$\frac{1}{4}$﹦$\frac{1}{16}$

点评 此题考查了分数四则运算的计算法则的运用．