Question

口算

1 3 ÷ 5 6 =	1 4 ÷ 2 5 =	5 6 ÷12=	7 12 ÷ 14 3 =	45÷ 3 10 =
9÷ 7 18 =	2 3 ÷ 9 10 =	4 25 ÷ 8 75 =	18÷ 1 6 =	4 11 ÷ 11 4 =

Answer 1

分析：依据“除以一个数就等于乘这个数的倒数”即可逐题解答．

解答：解：

1 3 ÷ 5 6 = 6 15	1 4 ÷ 2 5 = 5 8	5 6 ÷12= 5 72	7 12 ÷ 14 3 = 1 8	45÷ 3 10 =150
9÷ 7 18 = 162 7	2 3 ÷ 9 10 = 20 27	4 25 ÷ 8 75 = 3 2	18÷ 1 6 =108	4 11 ÷ 11 4 = 16 121

点评：此题主要考查分数除法的计算方法的灵活应用．