问题 解答题
直接写得数
1
5
+
2
5
=
5
8
-
3
8
=
1
2
+
1
3
=
3
5
+
1
15
=
1-
1
4
=
7
11
+
4
11
=
1
2
-
1
10
=
5
9
+
1
3
=
答案

1
5
+
2
5
=
3
5
5
8
-
3
8
=
1
4
1
2
+
1
3
=
5
6
3
5
+
1
15
=
2
3
1-
1
4
=
3
4
7
11
+
4
11
=1,
1
2
-
1
10
=
2
5
5
9
+
1
3
=
8
9

填空题
选择题