Question

直接写出得数： 1 2 ÷ 2 5 =	3 4 ÷6=	6÷ 4 9 =	9÷ 3 14 =	32÷ 8 35 =
11 26 ÷ 22 39 =	5 24 ÷ 25 36 =	24 25 ÷ 4 5 =	25 56 ÷ 15 42 =	27 38 ÷ 2 57 =

Answer 1

考点：分数除法

专题：运算顺序及法则

分析：分数除法：除以一个不为零的数等于乘上这个数的倒数，由此求解．

解答：

解： 1 2 ÷ 2 5 = 5 4	3 4 ÷6= 1 8	6÷ 4 9 = 27 2	9÷ 3 14 =42	32÷ 8 35 =140
11 26 ÷ 22 39 = 3 4	5 24 ÷ 25 36 = 3 10	24 25 ÷ 4 5 = 6 5	25 56 ÷ 15 42 = 5 4	27 38 ÷ 2 57 = 81 4

点评：分数除法注意两变，一不变：被除数不变，除号变乘号，除数变倒数．