直接寫出得數(shù).
1
3
=
1-
1
2
-
1
3
=
5
8
×
2
3
=
1
9
=
1
6
×12=
(3
1
8
+
7
9
)×0=
2
9
÷
3
5
=
1
2
+
7
12
=
1
3
=3,
1-
1
2
-
1
3
=
1
6
,
5
8
×
2
3
=
5
12
1
9
=81,
1
6
×12=2,
(3
1
8
+
7
9
)×0=0,
2
9
÷
3
5
=
10
27
,
1
2
+
7
12
=
13
12
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