(1)
3
4 -
5
12 +1
5
6
=
1
3 +1
5
6
=2
1
6 ;
(2)1-
3
8 ÷3×
2
3
=1-
1
8 ×
2
3
=1-
1
12
=
11
12 ;
(3) (
14
15 -
7
24 )×
3
2
=
14
15 ×
3
2 -
7
24 ×
3
2
=
7
5 -
7
16
=
77
80 .
(1)
3
4 -
5
12 +1
5
6
=
1
3 +1
5
6
=2
1
6 ;
(2)1-
3
8 ÷3×
2
3
=1-
1
8 ×
2
3
=1-
1
12
=
11
12 ;
(3) (
14
15 -
7
24 )×
3
2
=
14
15 ×
3
2 -
7
24 ×
3
2
=
7
5 -
7
16
=
77
80 .