Question

直接寫出得數(shù) 6 7 ÷3=	3 5 ×15=	2- 3 7 =	1+2%=
1 2 ×99+99× 1 2 =	7 8 ÷ 7 10 =	5÷ 2 3 =	4 3 ×75%=
7 8 ×4× 8 7 =	1 6 + 5 6 × 1 5 =

Answer 1

分析：分?jǐn)?shù)乘整數(shù)，用分?jǐn)?shù)的分子和整數(shù)相乘的積做分子，分母不變；分?jǐn)?shù)乘分?jǐn)?shù)，用分子相乘的積做分子，分母相乘的積做分母，能約分的要約分；分?jǐn)?shù)除以一個數(shù)，等于乘這個數(shù)的倒數(shù)；以及分?jǐn)?shù)四則運(yùn)算的法則，即可求解．

解答：解：

6 7 ÷3= 2 7	3 5 ×15=9	2- 3 7 = 11 7	1+2%=1.02
1 2 ×99+99× 1 2 =99	7 8 ÷ 7 10 = 5 4	5÷ 2 3 = 15 2	4 3 ×75%=1
7 8 ×4× 8 7 =4	1 6 + 5 6 × 1 5 = 1 3

點評：此題主要考查分?jǐn)?shù)乘法、除法和分?jǐn)?shù)四則運(yùn)算法則的靈活應(yīng)用．