Question

5 7 × 7 5 =	9× 1 9 =	4 5 × 1 8 =	24× 3 4 =
0× 6 17 =	4 9 ×6=	3 7 × 1 2 =	3 2 × 2 3 =

Answer 1

分析：分数乘法的计算法则：分子相乘的积做分子，分母相乘的积做分母，能约分的先约分．

解答：解：

5 7 × 7 5 =1	9× 1 9 =1	4 5 × 1 8 = 1 10	24× 3 4 =18
0× 6 17 =0	4 9 ×6= 8 3	3 7 × 1 2 = 3 14	3 2 × 2 3 =1．

点评：本题考查了简单的分数乘法计算，计算时要细心，注意把结果化成最简分数．