直接寫得數(shù)
1
3
×0=
1
4
×
2
5
=
5
6
×12=
7
12
×
3
14
=
1
7
×14=
8
9
×
3
8
=
3
10
×
10
3
=
7
18
=
2
3
×
9
10
=
1
2
÷
2
3
=
1
5
+
4
5
=
3
4
-
1
4
=
2
5
×2=
3
7
×
1
3
=
12÷
3
4
=
5
9
×
3
5
=
分析:運用分數(shù)的加減、乘除法的計算法則進行計算即可.
解答:
解:
1
3
×0=0,

1
4
×
2
5
=
1
10
,

5
6
×12=10,

7
12
×
3
14
=
1
8
,
1
7
×14=2,
8
9
×
3
8
=
1
3
,
3
10
×
10
3
=1,
7
18
=3.5,
2
3
×
9
10
=
3
5
,
1
2
÷
2
3
=
3
4
,
1
5
+
4
5
=1,
3
4
-
1
4
=
1
2
,
2
5
×2=
4
5
,
3
7
×
1
3
=
1
7
,
12÷
3
4
=16,
5
9
×
3
5
=
1
3
點評:在計算分數(shù)的乘除法的時候,注意先約分再進行計算.
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