(1)
1
4 ÷(
5
6 +
1
3 ),
=
1
4 ÷
7
6 ,
=
1
4 ×
6
7 ,
=
3
14 ;
答:商是
3
14 .
(2)(27-2)÷
5
8 ,
=25×
8
5 ,
=40;
答:这个数是40.
(3)28.7÷35%×
2
3 ,
=28.7÷0.35×
2
3 ,
=82×
2
3 ,
=
164
3 ;
答:它的
2
3 是
164
3 .
(1)
1
4 ÷(
5
6 +
1
3 ),
=
1
4 ÷
7
6 ,
=
1
4 ×
6
7 ,
=
3
14 ;
答:商是
3
14 .
(2)(27-2)÷
5
8 ,
=25×
8
5 ,
=40;
答:这个数是40.
(3)28.7÷35%×
2
3 ,
=28.7÷0.35×
2
3 ,
=82×
2
3 ,
=
164
3 ;
答:它的
2
3 是
164
3 .