Question

計算． 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）題、（11）～（15）題，把除法改為乘法，能約分的要約分；（10）題，約分計算；（16）題，屬于同分母分數(shù)的加法計算，只把分子相加減，分母不變．

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

點評：此題主要考查分數(shù)的除法運算，把除法改為乘法，再計算；同時考查了分數(shù)的乘法和加法運算．