①
2
9 ÷
8
27 ×
2
15 ,
=
2
9 ×
27
8 ×
2
15 ,
=
1
10 ;
②(
1
4 +
3
10 )÷
3
4 ,
=(
1
4 +
3
10 )×
4
3 ,
=
1
4 ×
4
3 +
3
10 ×
4
3 ,
=
1
3 +
2
5 ,
=
11
15 ;
③
5
6 ×
1
4 +
1
6 ÷4,
=
5
6 ×
1
4 +
1
6 ×
1
4 ,
=(
5
6 +
1
6 )×
1
4 ,
=1×
1
4 ,
=
1
4 ;
④1836÷[56×(
4
7 -
1
4 )],
=1836÷[56×
4
7 -56×
1
4 ],
=1836÷[32-14],
=1836÷18,
=102.