Question

计算． 8÷ 4 5 =	5÷ 10 11 =	14÷ 7 9 =	6÷ 2 7 =
3 11 ÷ 3 8 =	3 5 ÷ 3 7 =	8 27 ÷ 2 9 =	5 8 ÷ 3 7 =
3 5 ÷3=	3 4 ×2=	1 2 ÷3=	3÷ 3 5 =
4 5 ÷ 1 5 =	15÷ 3 2 =	1 4 ÷ 2 3 =	4 7 + 2 7 =

Answer 1

分析：（1）～（9）题、（11）～（15）题，把除法改为乘法，能约分的要约分；（10）题，约分计算；（16）题，属于同分母分数的加法计算，只把分子相加减，分母不变．

解答：解：

8÷ 4 5 =10	5÷ 10 11 = 11 2	14÷ 7 9 =18	6÷ 2 7 =21
3 11 ÷ 3 8 = 8 11	3 5 ÷ 3 7 = 7 5	8 27 ÷ 2 9 = 4 3	5 8 ÷ 3 7 = 35 24
3 5 ÷3= 1 5	3 4 ×2= 3 2	1 2 ÷3= 1 6	3÷ 3 5 =5
4 5 ÷ 1 5 =4	15÷ 3 2 =10	1 4 ÷ 2 3 = 3 8	4 7 + 2 7 = 6 7

点评：此题主要考查分数的除法运算，把除法改为乘法，再计算；同时考查了分数的乘法和加法运算．