Question

1 2 × 1 3 =	12× 5 6 =	5 8 × 4 15 =	8 9 × 27 40 =
11 18 ×24=	3 4 × 8 9 =	11 38 × 19 22 =	3 12 × 24 39 =

Answer 1

分析：根据分乘法的计算法则进行计算即可．

解答：

解： 1 2 × 1 3 = 1 6	12× 5 6 =10	5 8 × 4 15 = 1 6	8 9 × 27 40 = 3 5
11 18 ×24= 44 3	3 4 × 8 9 = 2 3	11 38 × 19 22 = 1 4	3 12 × 24 39 = 2 13

点评：本题考查了根据分乘法的计算法则进行计算，较简单，是基础题．