(1)
15
16 ÷
3
8 ÷
5
6 ,
=
15
16 ×
8
3 ÷
5
6 ,
=
5
2 ×
6
5 ,
=3;
(2)
9
13 ÷
15
26 ×
5
6 ,
=
9
13 ×
26
15 ×
5
6 ,
=1;
(3)
3
5 ÷3+
1
3 ×
4
5 ,
=
3
5 ×
1
3 +
1
3 ×
4
5 ,
=
1
3 ×
7
5 ,
=
7
15 ;
(4)(
1
2 +
3
8 )÷
3
4 ;
=
7
8 ×
4
3 ,
= 1
1
6 ;
(5)
3
10 ÷x=
3
5 ;
3
5 x=
3
10 ,
3
5 x÷
3
5 =
3
10 ÷
3
5 ,
x=
1
2 ;
(6)(1-
3
4 )x=2,
1
4 x=2,
1
4 x÷
1
4 =2÷
1
4 ,
x=8.