问题 解答题
2
9
+
4
9
=
1-
2
13
=
1
6
+
1
5
+
1
3
=
1-
2
3
-
1
3
=
5
8
-
1
8
=
1-
7
8
=
2
3
-
3
9
=
25×32×5=
答案

2
9
+
4
9
=
2
3
1-
2
13
=
11
13
1
6
+
1
5
+
1
3
=
21
30
1-
2
3
-
1
3
=0,
5
8
-
1
8
=
1
2
1-
7
8
=
1
8
2
3
-
3
9
=
1
3
25×32×5=4000.
故答案为:
2
3
11
13
21
30
,0,
1
2
1
8
1
3
,4000.

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