题目内容

直接写出得数．
35×
3
5
=
2
21
×
7
18
=
1
5
×
5
4
=
5
9
×
1
10
=
24×
5
6
=
3
10
×
2
3
=
3
7
×
1
6
=		 0×8
1
99
×99=
分析：根据分数乘法的计算法则可以直接计算，注意能约分的要先约分，结果一定是最简分数，最后一题根据0乘任何数都得0可直接作答．
解答：解：35×
3
5
=21       
2
21
×
7
18
=
1
27
       
1
5
×
5
4
=
1
4
        
5
9
×
1
10
=
1
18

24×
5
6
=20           
3
10
×
2
3
=
1
5
         
3
7
×
1
6
=
1
14
       0×8
1
99
×99=0
点评：本题主要考察了分数乘法的计算法则，分数乘分数，用分子相乘的积做分子，分母相乘的积做分母，能约分的要先约分．
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=
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