题目内容

直接写得数．
4
9
×3=		 5÷
1
3
=
1
2
÷
1
3
=
2
7
÷
2
7
×
8
9
=
3
8
×2=
3
25
×
5
9
=
3
8
÷
3
4
=
2
7
×（
1
4
+
1
3
）=
分析：利用分数乘除法法则进行计算即可．
解答：解：
4
9
×3=1
1
3
 5÷
1
3
=15
1
2
÷
1
3
=1
1
2
2
7
÷
2
7
×
8
9
=
8
9
3
8
×2=
3
4
3
25
×
5
9
=
1
15
3
8
÷
3
4
=
1
2
2
7
×（
1
4
+
1
3
）=
1
6
点评：此题考查了分数的四则混合运算．
练习册系列答案
相关题目
直接写得数：
49×2= 300×20= 25×4= 130×30= 18×3= 110×50=
直接写得数
67÷31=		 3.6×
4
9
=		 57×
55
56
-
55
56
=
21
8
×0=
3÷
1
3
=		 0.75+
1
4
=		 6.3÷
1
10
=		 120×
20
119
=
直接写得数．
4
9
×3=		 5÷
1
3
=
1
2
÷
1
3
=
1
3
×2=		 100×29%= 0.625×0.4=
3
8
÷
3
4
=
1
2
+
1
3
=
2
7
×（
1
4
+
1
3
）=
2
7
×
3
9
÷
2
7
=
直接写得数．
4
9
×3=		 5÷
1
3
=
1
2
÷
1
3
=
1
3
×2=		 100×29%= 0.625×0.4=
3
8
÷
3
4
=
1
2
+
1
3
=
2
7
×（
1
4
+
1
3
）=
2
7
×
3
9
÷
2
7
=

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网